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Finding the Fourth Proportional to 17,927.34, 26,878.02 and 9,155.58

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Solution

The fourth proportional to 17,927.34, 26,878.02 and 9,155.58 is: 13,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,927.34 : 26,878.02 = 9,155.58 : x
  2. Step 2: Convert to fraction form
    17,927.34/26,878.02 = 9,155.58/x
  3. Step 3: Cross multiply
    17,927.34x = 26,878.02 × 9,155.58
  4. Step 4: Simplify right side
    17,927.34x = 246,083,862.35
  5. Step 5: Solve for x
    x = 246,083,862.35/17,927.34
  6. Step 6: Final answer
    x = 13,726.74

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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.