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Finding the Fourth Proportional to 40,673.70, 61,010.55 and 38,945.70

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Solution

The fourth proportional to 40,673.70, 61,010.55 and 38,945.70 is: 58,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,673.70 : 61,010.55 = 38,945.70 : x
  2. Step 2: Convert to fraction form
    40,673.70/61,010.55 = 38,945.70/x
  3. Step 3: Cross multiply
    40,673.70x = 61,010.55 × 38,945.70
  4. Step 4: Simplify right side
    40,673.70x = 2,376,098,577.14
  5. Step 5: Solve for x
    x = 2,376,098,577.14/40,673.70
  6. Step 6: Final answer
    x = 58,418.55

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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.