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Finding the Fourth Proportional to 17,001.78, 23,462.46 and 9,929.58

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Solution

The fourth proportional to 17,001.78, 23,462.46 and 9,929.58 is: 13,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,001.78 : 23,462.46 = 9,929.58 : x
  2. Step 2: Convert to fraction form
    17,001.78/23,462.46 = 9,929.58/x
  3. Step 3: Cross multiply
    17,001.78x = 23,462.46 × 9,929.58
  4. Step 4: Simplify right side
    17,001.78x = 232,972,373.57
  5. Step 5: Solve for x
    x = 232,972,373.57/17,001.78
  6. Step 6: Final answer
    x = 13,702.82

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1.5x scale

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.