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Finding the Fourth Proportional to 17,630.52, 26,445.06 and 7,242

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Solution

The fourth proportional to 17,630.52, 26,445.06 and 7,242 is: 10,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,630.52 : 26,445.06 = 7,242 : x
  2. Step 2: Convert to fraction form
    17,630.52/26,445.06 = 7,242/x
  3. Step 3: Cross multiply
    17,630.52x = 26,445.06 × 7,242
  4. Step 4: Simplify right side
    17,630.52x = 191,515,124.52
  5. Step 5: Solve for x
    x = 191,515,124.52/17,630.52
  6. Step 6: Final answer
    x = 10,862.70

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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.