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Finding the Fourth Proportional to 13,480,368.40, 20,220,552.60 and 7,496,736.40

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Solution

The fourth proportional to 13,480,368.40, 20,220,552.60 and 7,496,736.40 is: 11,245,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,368.40 : 20,220,552.60 = 7,496,736.40 : x
  2. Step 2: Convert to fraction form
    13,480,368.40/20,220,552.60 = 7,496,736.40/x
  3. Step 3: Cross multiply
    13,480,368.40x = 20,220,552.60 × 7,496,736.40
  4. Step 4: Simplify right side
    13,480,368.40x = 151,588,152,704,534.66
  5. Step 5: Solve for x
    x = 151,588,152,704,534.66/13,480,368.40
  6. Step 6: Final answer
    x = 11,245,104.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.