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Finding the Fourth Proportional to 67,545.76, 101,329.77 and 20,798.63

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Solution

The fourth proportional to 67,545.76, 101,329.77 and 20,798.63 is: 31,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,545.76 : 101,329.77 = 20,798.63 : x
  2. Step 2: Convert to fraction form
    67,545.76/101,329.77 = 20,798.63/x
  3. Step 3: Cross multiply
    67,545.76x = 101,329.77 × 20,798.63
  4. Step 4: Simplify right side
    67,545.76x = 2,107,520,394.22
  5. Step 5: Solve for x
    x = 2,107,520,394.22/67,545.76
  6. Step 6: Final answer
    x = 31,201.37

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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.