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Finding the Fourth Proportional to 27,123.96, 40,685.95 and 7,403.05

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Solution

The fourth proportional to 27,123.96, 40,685.95 and 7,403.05 is: 11,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.96 : 40,685.95 = 7,403.05 : x
  2. Step 2: Convert to fraction form
    27,123.96/40,685.95 = 7,403.05/x
  3. Step 3: Cross multiply
    27,123.96x = 40,685.95 × 7,403.05
  4. Step 4: Simplify right side
    27,123.96x = 301,199,911.76
  5. Step 5: Solve for x
    x = 301,199,911.76/27,123.96
  6. Step 6: Final answer
    x = 11,104.57

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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.