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Finding the Fourth Proportional to 60,782.52, 91,182.87 and 21,332.70

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Solution

The fourth proportional to 60,782.52, 91,182.87 and 21,332.70 is: 32,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,782.52 : 91,182.87 = 21,332.70 : x
  2. Step 2: Convert to fraction form
    60,782.52/91,182.87 = 21,332.70/x
  3. Step 3: Cross multiply
    60,782.52x = 91,182.87 × 21,332.70
  4. Step 4: Simplify right side
    60,782.52x = 1,945,176,810.85
  5. Step 5: Solve for x
    x = 1,945,176,810.85/60,782.52
  6. Step 6: Final answer
    x = 32,002.24

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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.