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Finding the Fourth Proportional to 44,697.80, 67,061.26 and 21,321.20

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Solution

The fourth proportional to 44,697.80, 67,061.26 and 21,321.20 is: 31,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,697.80 : 67,061.26 = 21,321.20 : x
  2. Step 2: Convert to fraction form
    44,697.80/67,061.26 = 21,321.20/x
  3. Step 3: Cross multiply
    44,697.80x = 67,061.26 × 21,321.20
  4. Step 4: Simplify right side
    44,697.80x = 1,429,826,536.71
  5. Step 5: Solve for x
    x = 1,429,826,536.71/44,697.80
  6. Step 6: Final answer
    x = 31,988.75

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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.