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Finding the Fourth Proportional to 29,726.80, 44,578.04 and 12,860.76

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Solution

The fourth proportional to 29,726.80, 44,578.04 and 12,860.76 is: 19,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,726.80 : 44,578.04 = 12,860.76 : x
  2. Step 2: Convert to fraction form
    29,726.80/44,578.04 = 12,860.76/x
  3. Step 3: Cross multiply
    29,726.80x = 44,578.04 × 12,860.76
  4. Step 4: Simplify right side
    29,726.80x = 573,307,473.71
  5. Step 5: Solve for x
    x = 573,307,473.71/29,726.80
  6. Step 6: Final answer
    x = 19,285.88

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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.