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Finding the Fourth Proportional to 15,158.61, 22,752.14 and 9,326.61

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Solution

The fourth proportional to 15,158.61, 22,752.14 and 9,326.61 is: 13,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.61 : 22,752.14 = 9,326.61 : x
  2. Step 2: Convert to fraction form
    15,158.61/22,752.14 = 9,326.61/x
  3. Step 3: Cross multiply
    15,158.61x = 22,752.14 × 9,326.61
  4. Step 4: Simplify right side
    15,158.61x = 212,200,289.81
  5. Step 5: Solve for x
    x = 212,200,289.81/15,158.61
  6. Step 6: Final answer
    x = 13,998.66

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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.