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Finding the Fourth Proportional to 67,582.88, 101,391.60 and 28,126.88

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Solution

The fourth proportional to 67,582.88, 101,391.60 and 28,126.88 is: 42,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,582.88 : 101,391.60 = 28,126.88 : x
  2. Step 2: Convert to fraction form
    67,582.88/101,391.60 = 28,126.88/x
  3. Step 3: Cross multiply
    67,582.88x = 101,391.60 × 28,126.88
  4. Step 4: Simplify right side
    67,582.88x = 2,851,829,366.21
  5. Step 5: Solve for x
    x = 2,851,829,366.21/67,582.88
  6. Step 6: Final answer
    x = 42,197.51

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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.