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Finding the Fourth Proportional to 60,221.70, 90,332.26 and 15,243.48

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Solution

The fourth proportional to 60,221.70, 90,332.26 and 15,243.48 is: 22,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,221.70 : 90,332.26 = 15,243.48 : x
  2. Step 2: Convert to fraction form
    60,221.70/90,332.26 = 15,243.48/x
  3. Step 3: Cross multiply
    60,221.70x = 90,332.26 × 15,243.48
  4. Step 4: Simplify right side
    60,221.70x = 1,376,977,960.56
  5. Step 5: Solve for x
    x = 1,376,977,960.56/60,221.70
  6. Step 6: Final answer
    x = 22,865.15

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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.