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Finding the Fourth Proportional to 29,790.20, 44,691.30 and 8,730.20

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Solution

The fourth proportional to 29,790.20, 44,691.30 and 8,730.20 is: 13,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,790.20 : 44,691.30 = 8,730.20 : x
  2. Step 2: Convert to fraction form
    29,790.20/44,691.30 = 8,730.20/x
  3. Step 3: Cross multiply
    29,790.20x = 44,691.30 × 8,730.20
  4. Step 4: Simplify right side
    29,790.20x = 390,163,987.26
  5. Step 5: Solve for x
    x = 390,163,987.26/29,790.20
  6. Step 6: Final answer
    x = 13,097.06

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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.