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Finding the Fourth Proportional to 18,864.56, 26,033.04 and 10,481

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Solution

The fourth proportional to 18,864.56, 26,033.04 and 10,481 is: 14,463.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.56 : 26,033.04 = 10,481 : x
  2. Step 2: Convert to fraction form
    18,864.56/26,033.04 = 10,481/x
  3. Step 3: Cross multiply
    18,864.56x = 26,033.04 × 10,481
  4. Step 4: Simplify right side
    18,864.56x = 272,852,292.24
  5. Step 5: Solve for x
    x = 272,852,292.24/18,864.56
  6. Step 6: Final answer
    x = 14,463.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.