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Finding the Fourth Proportional to 27,335.61, 40,981.21 and 11,530.42

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Solution

The fourth proportional to 27,335.61, 40,981.21 and 11,530.42 is: 17,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,335.61 : 40,981.21 = 11,530.42 : x
  2. Step 2: Convert to fraction form
    27,335.61/40,981.21 = 11,530.42/x
  3. Step 3: Cross multiply
    27,335.61x = 40,981.21 × 11,530.42
  4. Step 4: Simplify right side
    27,335.61x = 472,530,432.13
  5. Step 5: Solve for x
    x = 472,530,432.13/27,335.61
  6. Step 6: Final answer
    x = 17,286.26

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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.