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Finding the Fourth Proportional to 40,475.80, 60,713.70 and 36,539.20

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Solution

The fourth proportional to 40,475.80, 60,713.70 and 36,539.20 is: 54,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,475.80 : 60,713.70 = 36,539.20 : x
  2. Step 2: Convert to fraction form
    40,475.80/60,713.70 = 36,539.20/x
  3. Step 3: Cross multiply
    40,475.80x = 60,713.70 × 36,539.20
  4. Step 4: Simplify right side
    40,475.80x = 2,218,430,027.04
  5. Step 5: Solve for x
    x = 2,218,430,027.04/40,475.80
  6. Step 6: Final answer
    x = 54,808.80

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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.