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Finding the Fourth Proportional to 29,101.65, 43,615.95 and 12,442.11

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Solution

The fourth proportional to 29,101.65, 43,615.95 and 12,442.11 is: 18,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,101.65 : 43,615.95 = 12,442.11 : x
  2. Step 2: Convert to fraction form
    29,101.65/43,615.95 = 12,442.11/x
  3. Step 3: Cross multiply
    29,101.65x = 43,615.95 × 12,442.11
  4. Step 4: Simplify right side
    29,101.65x = 542,674,447.65
  5. Step 5: Solve for x
    x = 542,674,447.65/29,101.65
  6. Step 6: Final answer
    x = 18,647.55

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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.