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Finding the Fourth Proportional to 58,699.92, 80,996.76 and 38,564.88

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Solution

The fourth proportional to 58,699.92, 80,996.76 and 38,564.88 is: 53,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,699.92 : 80,996.76 = 38,564.88 : x
  2. Step 2: Convert to fraction form
    58,699.92/80,996.76 = 38,564.88/x
  3. Step 3: Cross multiply
    58,699.92x = 80,996.76 × 38,564.88
  4. Step 4: Simplify right side
    58,699.92x = 3,123,630,329.79
  5. Step 5: Solve for x
    x = 3,123,630,329.79/58,699.92
  6. Step 6: Final answer
    x = 53,213.54

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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.