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Finding the Fourth Proportional to 39,921.60, 59,877.60 and 16,545.60

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Solution

The fourth proportional to 39,921.60, 59,877.60 and 16,545.60 is: 24,816.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.60 : 59,877.60 = 16,545.60 : x
  2. Step 2: Convert to fraction form
    39,921.60/59,877.60 = 16,545.60/x
  3. Step 3: Cross multiply
    39,921.60x = 59,877.60 × 16,545.60
  4. Step 4: Simplify right side
    39,921.60x = 990,710,818.56
  5. Step 5: Solve for x
    x = 990,710,818.56/39,921.60
  6. Step 6: Final answer
    x = 24,816.41

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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.