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Finding the Fourth Proportional to 57,764.70, 86,517.45 and 56,468.70

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Solution

The fourth proportional to 57,764.70, 86,517.45 and 56,468.70 is: 84,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,764.70 : 86,517.45 = 56,468.70 : x
  2. Step 2: Convert to fraction form
    57,764.70/86,517.45 = 56,468.70/x
  3. Step 3: Cross multiply
    57,764.70x = 86,517.45 × 56,468.70
  4. Step 4: Simplify right side
    57,764.70x = 4,885,527,928.82
  5. Step 5: Solve for x
    x = 4,885,527,928.82/57,764.70
  6. Step 6: Final answer
    x = 84,576.36

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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.