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Finding the Fourth Proportional to 18,863.68, 26,032.56 and 10,480

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Solution

The fourth proportional to 18,863.68, 26,032.56 and 10,480 is: 14,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.68 : 26,032.56 = 10,480 : x
  2. Step 2: Convert to fraction form
    18,863.68/26,032.56 = 10,480/x
  3. Step 3: Cross multiply
    18,863.68x = 26,032.56 × 10,480
  4. Step 4: Simplify right side
    18,863.68x = 272,821,228.80
  5. Step 5: Solve for x
    x = 272,821,228.80/18,863.68
  6. Step 6: Final answer
    x = 14,462.78

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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.