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Finding the Fourth Proportional to 17,876.18, 26,823.38 and 7,354.28

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Solution

The fourth proportional to 17,876.18, 26,823.38 and 7,354.28 is: 11,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,876.18 : 26,823.38 = 7,354.28 : x
  2. Step 2: Convert to fraction form
    17,876.18/26,823.38 = 7,354.28/x
  3. Step 3: Cross multiply
    17,876.18x = 26,823.38 × 7,354.28
  4. Step 4: Simplify right side
    17,876.18x = 197,266,476.18
  5. Step 5: Solve for x
    x = 197,266,476.18/17,876.18
  6. Step 6: Final answer
    x = 11,035.16

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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.