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Finding the Fourth Proportional to 82,691.68, 124,038.88 and 23,528.88

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Solution

The fourth proportional to 82,691.68, 124,038.88 and 23,528.88 is: 35,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,691.68 : 124,038.88 = 23,528.88 : x
  2. Step 2: Convert to fraction form
    82,691.68/124,038.88 = 23,528.88/x
  3. Step 3: Cross multiply
    82,691.68x = 124,038.88 × 23,528.88
  4. Step 4: Simplify right side
    82,691.68x = 2,918,495,922.85
  5. Step 5: Solve for x
    x = 2,918,495,922.85/82,691.68
  6. Step 6: Final answer
    x = 35,293.71

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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.