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Finding the Fourth Proportional to 63,824.80, 95,780.40 and 28,746.40

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Solution

The fourth proportional to 63,824.80, 95,780.40 and 28,746.40 is: 43,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,824.80 : 95,780.40 = 28,746.40 : x
  2. Step 2: Convert to fraction form
    63,824.80/95,780.40 = 28,746.40/x
  3. Step 3: Cross multiply
    63,824.80x = 95,780.40 × 28,746.40
  4. Step 4: Simplify right side
    63,824.80x = 2,753,341,690.56
  5. Step 5: Solve for x
    x = 2,753,341,690.56/63,824.80
  6. Step 6: Final answer
    x = 43,139.06

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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.