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Finding the Fourth Proportional to 17,995.70, 27,005.70 and 10,098.20

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Solution

The fourth proportional to 17,995.70, 27,005.70 and 10,098.20 is: 15,154.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,995.70 : 27,005.70 = 10,098.20 : x
  2. Step 2: Convert to fraction form
    17,995.70/27,005.70 = 10,098.20/x
  3. Step 3: Cross multiply
    17,995.70x = 27,005.70 × 10,098.20
  4. Step 4: Simplify right side
    17,995.70x = 272,708,959.74
  5. Step 5: Solve for x
    x = 272,708,959.74/17,995.70
  6. Step 6: Final answer
    x = 15,154.12

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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.