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Finding the Fourth Proportional to 67,855.88, 101,784.47 and 25,724.63

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Solution

The fourth proportional to 67,855.88, 101,784.47 and 25,724.63 is: 38,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,855.88 : 101,784.47 = 25,724.63 : x
  2. Step 2: Convert to fraction form
    67,855.88/101,784.47 = 25,724.63/x
  3. Step 3: Cross multiply
    67,855.88x = 101,784.47 × 25,724.63
  4. Step 4: Simplify right side
    67,855.88x = 2,618,367,192.95
  5. Step 5: Solve for x
    x = 2,618,367,192.95/67,855.88
  6. Step 6: Final answer
    x = 38,587.18

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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.