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Finding the Fourth Proportional to 58,490.78, 80,712.33 and 34,613.24

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Solution

The fourth proportional to 58,490.78, 80,712.33 and 34,613.24 is: 47,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,490.78 : 80,712.33 = 34,613.24 : x
  2. Step 2: Convert to fraction form
    58,490.78/80,712.33 = 34,613.24/x
  3. Step 3: Cross multiply
    58,490.78x = 80,712.33 × 34,613.24
  4. Step 4: Simplify right side
    58,490.78x = 2,793,715,249.25
  5. Step 5: Solve for x
    x = 2,793,715,249.25/58,490.78
  6. Step 6: Final answer
    x = 47,763.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.