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Finding the Fourth Proportional to 22,656.79, 33,985.22 and 8,613.52

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Solution

The fourth proportional to 22,656.79, 33,985.22 and 8,613.52 is: 12,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,656.79 : 33,985.22 = 8,613.52 : x
  2. Step 2: Convert to fraction form
    22,656.79/33,985.22 = 8,613.52/x
  3. Step 3: Cross multiply
    22,656.79x = 33,985.22 × 8,613.52
  4. Step 4: Simplify right side
    22,656.79x = 292,732,372.17
  5. Step 5: Solve for x
    x = 292,732,372.17/22,656.79
  6. Step 6: Final answer
    x = 12,920.29

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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.