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Finding the Fourth Proportional to 17,001.97, 25,507.28 and 9,987.91

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Solution

The fourth proportional to 17,001.97, 25,507.28 and 9,987.91 is: 14,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,001.97 : 25,507.28 = 9,987.91 : x
  2. Step 2: Convert to fraction form
    17,001.97/25,507.28 = 9,987.91/x
  3. Step 3: Cross multiply
    17,001.97x = 25,507.28 × 9,987.91
  4. Step 4: Simplify right side
    17,001.97x = 254,764,416.98
  5. Step 5: Solve for x
    x = 254,764,416.98/17,001.97
  6. Step 6: Final answer
    x = 14,984.41

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1.5x scale

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.