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Finding the Fourth Proportional to 29,418.63, 44,127.94 and 8,642.13

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Solution

The fourth proportional to 29,418.63, 44,127.94 and 8,642.13 is: 12,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,418.63 : 44,127.94 = 8,642.13 : x
  2. Step 2: Convert to fraction form
    29,418.63/44,127.94 = 8,642.13/x
  3. Step 3: Cross multiply
    29,418.63x = 44,127.94 × 8,642.13
  4. Step 4: Simplify right side
    29,418.63x = 381,359,394.11
  5. Step 5: Solve for x
    x = 381,359,394.11/29,418.63
  6. Step 6: Final answer
    x = 12,963.19

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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.