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Finding the Fourth Proportional to 58,445.78, 80,644.91 and 34,563.74

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Solution

The fourth proportional to 58,445.78, 80,644.91 and 34,563.74 is: 47,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,445.78 : 80,644.91 = 34,563.74 : x
  2. Step 2: Convert to fraction form
    58,445.78/80,644.91 = 34,563.74/x
  3. Step 3: Cross multiply
    58,445.78x = 80,644.91 × 34,563.74
  4. Step 4: Simplify right side
    58,445.78x = 2,787,389,125.52
  5. Step 5: Solve for x
    x = 2,787,389,125.52/58,445.78
  6. Step 6: Final answer
    x = 47,691.88

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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.