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Finding the Fourth Proportional to 72,318.96, 108,506.97 and 22,402.95

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Solution

The fourth proportional to 72,318.96, 108,506.97 and 22,402.95 is: 33,613.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,318.96 : 108,506.97 = 22,402.95 : x
  2. Step 2: Convert to fraction form
    72,318.96/108,506.97 = 22,402.95/x
  3. Step 3: Cross multiply
    72,318.96x = 108,506.97 × 22,402.95
  4. Step 4: Simplify right side
    72,318.96x = 2,430,876,223.56
  5. Step 5: Solve for x
    x = 2,430,876,223.56/72,318.96
  6. Step 6: Final answer
    x = 33,613.26

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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.