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Finding the Fourth Proportional to 60,456.70, 90,575.70 and 51,708.70

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Solution

The fourth proportional to 60,456.70, 90,575.70 and 51,708.70 is: 77,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,456.70 : 90,575.70 = 51,708.70 : x
  2. Step 2: Convert to fraction form
    60,456.70/90,575.70 = 51,708.70/x
  3. Step 3: Cross multiply
    60,456.70x = 90,575.70 × 51,708.70
  4. Step 4: Simplify right side
    60,456.70x = 4,683,551,698.59
  5. Step 5: Solve for x
    x = 4,683,551,698.59/60,456.70
  6. Step 6: Final answer
    x = 77,469.52

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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.