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Finding the Fourth Proportional to 41,043.65, 61,565.48 and 9,878.90

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Solution

The fourth proportional to 41,043.65, 61,565.48 and 9,878.90 is: 14,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,043.65 : 61,565.48 = 9,878.90 : x
  2. Step 2: Convert to fraction form
    41,043.65/61,565.48 = 9,878.90/x
  3. Step 3: Cross multiply
    41,043.65x = 61,565.48 × 9,878.90
  4. Step 4: Simplify right side
    41,043.65x = 608,198,863.15
  5. Step 5: Solve for x
    x = 608,198,863.15/41,043.65
  6. Step 6: Final answer
    x = 14,818.34

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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.