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Finding the Fourth Proportional to 29,931.22, 44,891.76 and 8,870.86

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Solution

The fourth proportional to 29,931.22, 44,891.76 and 8,870.86 is: 13,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,931.22 : 44,891.76 = 8,870.86 : x
  2. Step 2: Convert to fraction form
    29,931.22/44,891.76 = 8,870.86/x
  3. Step 3: Cross multiply
    29,931.22x = 44,891.76 × 8,870.86
  4. Step 4: Simplify right side
    29,931.22x = 398,228,518.11
  5. Step 5: Solve for x
    x = 398,228,518.11/29,931.22
  6. Step 6: Final answer
    x = 13,304.79

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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.