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Finding the Fourth Proportional to 92,008.68, 138,012.87 and 28,833.66

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Solution

The fourth proportional to 92,008.68, 138,012.87 and 28,833.66 is: 43,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,008.68 : 138,012.87 = 28,833.66 : x
  2. Step 2: Convert to fraction form
    92,008.68/138,012.87 = 28,833.66/x
  3. Step 3: Cross multiply
    92,008.68x = 138,012.87 × 28,833.66
  4. Step 4: Simplify right side
    92,008.68x = 3,979,416,169.20
  5. Step 5: Solve for x
    x = 3,979,416,169.20/92,008.68
  6. Step 6: Final answer
    x = 43,250.44

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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.