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Finding the Fourth Proportional to 67,340.21, 101,009.64 and 25,787.21

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Solution

The fourth proportional to 67,340.21, 101,009.64 and 25,787.21 is: 38,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,340.21 : 101,009.64 = 25,787.21 : x
  2. Step 2: Convert to fraction form
    67,340.21/101,009.64 = 25,787.21/x
  3. Step 3: Cross multiply
    67,340.21x = 101,009.64 × 25,787.21
  4. Step 4: Simplify right side
    67,340.21x = 2,604,756,293.66
  5. Step 5: Solve for x
    x = 2,604,756,293.66/67,340.21
  6. Step 6: Final answer
    x = 38,680.55

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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.