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Finding the Fourth Proportional to 18,644.58, 27,957.15 and 6,948.18

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Solution

The fourth proportional to 18,644.58, 27,957.15 and 6,948.18 is: 10,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.58 : 27,957.15 = 6,948.18 : x
  2. Step 2: Convert to fraction form
    18,644.58/27,957.15 = 6,948.18/x
  3. Step 3: Cross multiply
    18,644.58x = 27,957.15 × 6,948.18
  4. Step 4: Simplify right side
    18,644.58x = 194,251,310.49
  5. Step 5: Solve for x
    x = 194,251,310.49/18,644.58
  6. Step 6: Final answer
    x = 10,418.65

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1.5x scale

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.