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Finding the Fourth Proportional to 67,701.95, 101,569.14 and 20,954.82

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Solution

The fourth proportional to 67,701.95, 101,569.14 and 20,954.82 is: 31,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,701.95 : 101,569.14 = 20,954.82 : x
  2. Step 2: Convert to fraction form
    67,701.95/101,569.14 = 20,954.82/x
  3. Step 3: Cross multiply
    67,701.95x = 101,569.14 × 20,954.82
  4. Step 4: Simplify right side
    67,701.95x = 2,128,363,046.25
  5. Step 5: Solve for x
    x = 2,128,363,046.25/67,701.95
  6. Step 6: Final answer
    x = 31,437.25

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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.