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Finding the Fourth Proportional to 57,432.81, 86,149.14 and 17,992.99

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Solution

The fourth proportional to 57,432.81, 86,149.14 and 17,992.99 is: 26,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,432.81 : 86,149.14 = 17,992.99 : x
  2. Step 2: Convert to fraction form
    57,432.81/86,149.14 = 17,992.99/x
  3. Step 3: Cross multiply
    57,432.81x = 86,149.14 × 17,992.99
  4. Step 4: Simplify right side
    57,432.81x = 1,550,080,614.53
  5. Step 5: Solve for x
    x = 1,550,080,614.53/57,432.81
  6. Step 6: Final answer
    x = 26,989.46

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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.