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Finding the Fourth Proportional to 48,472.60, 72,708.90 and 36,722.20

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Solution

The fourth proportional to 48,472.60, 72,708.90 and 36,722.20 is: 55,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,472.60 : 72,708.90 = 36,722.20 : x
  2. Step 2: Convert to fraction form
    48,472.60/72,708.90 = 36,722.20/x
  3. Step 3: Cross multiply
    48,472.60x = 72,708.90 × 36,722.20
  4. Step 4: Simplify right side
    48,472.60x = 2,670,030,767.58
  5. Step 5: Solve for x
    x = 2,670,030,767.58/48,472.60
  6. Step 6: Final answer
    x = 55,083.30

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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.