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Finding the Fourth Proportional to 17,105.97, 25,655.28 and 9,985.46

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Solution

The fourth proportional to 17,105.97, 25,655.28 and 9,985.46 is: 14,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,105.97 : 25,655.28 = 9,985.46 : x
  2. Step 2: Convert to fraction form
    17,105.97/25,655.28 = 9,985.46/x
  3. Step 3: Cross multiply
    17,105.97x = 25,655.28 × 9,985.46
  4. Step 4: Simplify right side
    17,105.97x = 256,179,772.23
  5. Step 5: Solve for x
    x = 256,179,772.23/17,105.97
  6. Step 6: Final answer
    x = 14,976.05

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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.