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Finding the Fourth Proportional to 57,820.80, 86,698.80 and 24,535.20

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Solution

The fourth proportional to 57,820.80, 86,698.80 and 24,535.20 is: 36,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,820.80 : 86,698.80 = 24,535.20 : x
  2. Step 2: Convert to fraction form
    57,820.80/86,698.80 = 24,535.20/x
  3. Step 3: Cross multiply
    57,820.80x = 86,698.80 × 24,535.20
  4. Step 4: Simplify right side
    57,820.80x = 2,127,172,397.76
  5. Step 5: Solve for x
    x = 2,127,172,397.76/57,820.80
  6. Step 6: Final answer
    x = 36,789.05

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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.