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Finding the Fourth Proportional to 43,710.40, 65,575.24 and 25,957.20

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Solution

The fourth proportional to 43,710.40, 65,575.24 and 25,957.20 is: 38,941.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,710.40 : 65,575.24 = 25,957.20 : x
  2. Step 2: Convert to fraction form
    43,710.40/65,575.24 = 25,957.20/x
  3. Step 3: Cross multiply
    43,710.40x = 65,575.24 × 25,957.20
  4. Step 4: Simplify right side
    43,710.40x = 1,702,149,619.73
  5. Step 5: Solve for x
    x = 1,702,149,619.73/43,710.40
  6. Step 6: Final answer
    x = 38,941.52

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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.