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Finding the Fourth Proportional to 72,927.60, 109,391.40 and 41,737.20

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Solution

The fourth proportional to 72,927.60, 109,391.40 and 41,737.20 is: 62,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.60 : 109,391.40 = 41,737.20 : x
  2. Step 2: Convert to fraction form
    72,927.60/109,391.40 = 41,737.20/x
  3. Step 3: Cross multiply
    72,927.60x = 109,391.40 × 41,737.20
  4. Step 4: Simplify right side
    72,927.60x = 4,565,690,740.08
  5. Step 5: Solve for x
    x = 4,565,690,740.08/72,927.60
  6. Step 6: Final answer
    x = 62,605.80

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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.