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Finding the Fourth Proportional to 43,710.90, 65,575.99 and 25,957.70

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Solution

The fourth proportional to 43,710.90, 65,575.99 and 25,957.70 is: 38,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,710.90 : 65,575.99 = 25,957.70 : x
  2. Step 2: Convert to fraction form
    43,710.90/65,575.99 = 25,957.70/x
  3. Step 3: Cross multiply
    43,710.90x = 65,575.99 × 25,957.70
  4. Step 4: Simplify right side
    43,710.90x = 1,702,201,875.62
  5. Step 5: Solve for x
    x = 1,702,201,875.62/43,710.90
  6. Step 6: Final answer
    x = 38,942.27

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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.