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Finding the Fourth Proportional to 17,702.66, 26,535.39 and 8,919.15

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Solution

The fourth proportional to 17,702.66, 26,535.39 and 8,919.15 is: 13,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,702.66 : 26,535.39 = 8,919.15 : x
  2. Step 2: Convert to fraction form
    17,702.66/26,535.39 = 8,919.15/x
  3. Step 3: Cross multiply
    17,702.66x = 26,535.39 × 8,919.15
  4. Step 4: Simplify right side
    17,702.66x = 236,673,090.27
  5. Step 5: Solve for x
    x = 236,673,090.27/17,702.66
  6. Step 6: Final answer
    x = 13,369.36

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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.