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Finding the Fourth Proportional to 38,084.80, 57,148.80 and 14,712.88

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Solution

The fourth proportional to 38,084.80, 57,148.80 and 14,712.88 is: 22,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,084.80 : 57,148.80 = 14,712.88 : x
  2. Step 2: Convert to fraction form
    38,084.80/57,148.80 = 14,712.88/x
  3. Step 3: Cross multiply
    38,084.80x = 57,148.80 × 14,712.88
  4. Step 4: Simplify right side
    38,084.80x = 840,823,436.54
  5. Step 5: Solve for x
    x = 840,823,436.54/38,084.80
  6. Step 6: Final answer
    x = 22,077.66

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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.