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Finding the Fourth Proportional to 69,872.67, 96,421.26 and 38,041.68

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Solution

The fourth proportional to 69,872.67, 96,421.26 and 38,041.68 is: 52,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,872.67 : 96,421.26 = 38,041.68 : x
  2. Step 2: Convert to fraction form
    69,872.67/96,421.26 = 38,041.68/x
  3. Step 3: Cross multiply
    69,872.67x = 96,421.26 × 38,041.68
  4. Step 4: Simplify right side
    69,872.67x = 3,668,026,718.12
  5. Step 5: Solve for x
    x = 3,668,026,718.12/69,872.67
  6. Step 6: Final answer
    x = 52,495.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.