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Finding the Fourth Proportional to 29,905.92, 44,859.06 and 9,129.42

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Solution

The fourth proportional to 29,905.92, 44,859.06 and 9,129.42 is: 13,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,905.92 : 44,859.06 = 9,129.42 : x
  2. Step 2: Convert to fraction form
    29,905.92/44,859.06 = 9,129.42/x
  3. Step 3: Cross multiply
    29,905.92x = 44,859.06 × 9,129.42
  4. Step 4: Simplify right side
    29,905.92x = 409,537,199.55
  5. Step 5: Solve for x
    x = 409,537,199.55/29,905.92
  6. Step 6: Final answer
    x = 13,694.18

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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.