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Finding the Fourth Proportional to 12,432.58, 17,156.92 and 6,843.58

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Solution

The fourth proportional to 12,432.58, 17,156.92 and 6,843.58 is: 9,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.58 : 17,156.92 = 6,843.58 : x
  2. Step 2: Convert to fraction form
    12,432.58/17,156.92 = 6,843.58/x
  3. Step 3: Cross multiply
    12,432.58x = 17,156.92 × 6,843.58
  4. Step 4: Simplify right side
    12,432.58x = 117,414,754.57
  5. Step 5: Solve for x
    x = 117,414,754.57/12,432.58
  6. Step 6: Final answer
    x = 9,444.12

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1.5x scale

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.