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Finding the Fourth Proportional to 81,024.60, 111,769.02 and 47,484.12

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Solution

The fourth proportional to 81,024.60, 111,769.02 and 47,484.12 is: 65,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.60 : 111,769.02 = 47,484.12 : x
  2. Step 2: Convert to fraction form
    81,024.60/111,769.02 = 47,484.12/x
  3. Step 3: Cross multiply
    81,024.60x = 111,769.02 × 47,484.12
  4. Step 4: Simplify right side
    81,024.60x = 5,307,253,557.96
  5. Step 5: Solve for x
    x = 5,307,253,557.96/81,024.60
  6. Step 6: Final answer
    x = 65,501.76

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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.