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Finding the Fourth Proportional to 74,593.40, 112,019.70 and 39,601.40

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Solution

The fourth proportional to 74,593.40, 112,019.70 and 39,601.40 is: 59,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,593.40 : 112,019.70 = 39,601.40 : x
  2. Step 2: Convert to fraction form
    74,593.40/112,019.70 = 39,601.40/x
  3. Step 3: Cross multiply
    74,593.40x = 112,019.70 × 39,601.40
  4. Step 4: Simplify right side
    74,593.40x = 4,436,136,947.58
  5. Step 5: Solve for x
    x = 4,436,136,947.58/74,593.40
  6. Step 6: Final answer
    x = 59,470.90

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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.