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Finding the Fourth Proportional to 12,529,294.40, 17,503,220.80 and 12,529,294.40

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Solution

The fourth proportional to 12,529,294.40, 17,503,220.80 and 12,529,294.40 is: 17,503,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,294.40 : 17,503,220.80 = 12,529,294.40 : x
  2. Step 2: Convert to fraction form
    12,529,294.40/17,503,220.80 = 12,529,294.40/x
  3. Step 3: Cross multiply
    12,529,294.40x = 17,503,220.80 × 12,529,294.40
  4. Step 4: Simplify right side
    12,529,294.40x = 219,303,006,351,403.53
  5. Step 5: Solve for x
    x = 219,303,006,351,403.53/12,529,294.40
  6. Step 6: Final answer
    x = 17,503,220.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.