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Finding the Fourth Proportional to 57,584.59, 86,215.56 and 43,500.31

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Solution

The fourth proportional to 57,584.59, 86,215.56 and 43,500.31 is: 65,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,584.59 : 86,215.56 = 43,500.31 : x
  2. Step 2: Convert to fraction form
    57,584.59/86,215.56 = 43,500.31/x
  3. Step 3: Cross multiply
    57,584.59x = 86,215.56 × 43,500.31
  4. Step 4: Simplify right side
    57,584.59x = 3,750,403,586.82
  5. Step 5: Solve for x
    x = 3,750,403,586.82/57,584.59
  6. Step 6: Final answer
    x = 65,128.60

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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.