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Finding the Fourth Proportional to 37,759.52, 56,639.28 and 12,799.68

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Solution

The fourth proportional to 37,759.52, 56,639.28 and 12,799.68 is: 19,199.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,759.52 : 56,639.28 = 12,799.68 : x
  2. Step 2: Convert to fraction form
    37,759.52/56,639.28 = 12,799.68/x
  3. Step 3: Cross multiply
    37,759.52x = 56,639.28 × 12,799.68
  4. Step 4: Simplify right side
    37,759.52x = 724,964,659.43
  5. Step 5: Solve for x
    x = 724,964,659.43/37,759.52
  6. Step 6: Final answer
    x = 19,199.52

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Similar ratio
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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.