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Finding the Fourth Proportional to 39,718.80, 59,809.50 and 29,350.80

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Solution

The fourth proportional to 39,718.80, 59,809.50 and 29,350.80 is: 44,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.80 : 59,809.50 = 29,350.80 : x
  2. Step 2: Convert to fraction form
    39,718.80/59,809.50 = 29,350.80/x
  3. Step 3: Cross multiply
    39,718.80x = 59,809.50 × 29,350.80
  4. Step 4: Simplify right side
    39,718.80x = 1,755,456,672.60
  5. Step 5: Solve for x
    x = 1,755,456,672.60/39,718.80
  6. Step 6: Final answer
    x = 44,197.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.