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Finding the Fourth Proportional to 67,699.68, 101,521.50 and 25,572.60

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Solution

The fourth proportional to 67,699.68, 101,521.50 and 25,572.60 is: 38,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,699.68 : 101,521.50 = 25,572.60 : x
  2. Step 2: Convert to fraction form
    67,699.68/101,521.50 = 25,572.60/x
  3. Step 3: Cross multiply
    67,699.68x = 101,521.50 × 25,572.60
  4. Step 4: Simplify right side
    67,699.68x = 2,596,168,710.90
  5. Step 5: Solve for x
    x = 2,596,168,710.90/67,699.68
  6. Step 6: Final answer
    x = 38,348.32

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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.