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Finding the Fourth Proportional to 71,636.72, 107,454.98 and 19,046.24

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Solution

The fourth proportional to 71,636.72, 107,454.98 and 19,046.24 is: 28,569.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,636.72 : 107,454.98 = 19,046.24 : x
  2. Step 2: Convert to fraction form
    71,636.72/107,454.98 = 19,046.24/x
  3. Step 3: Cross multiply
    71,636.72x = 107,454.98 × 19,046.24
  4. Step 4: Simplify right side
    71,636.72x = 2,046,613,338.28
  5. Step 5: Solve for x
    x = 2,046,613,338.28/71,636.72
  6. Step 6: Final answer
    x = 28,569.33

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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.