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Finding the Fourth Proportional to 17,993.28, 26,988.87 and 6,899.52

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Solution

The fourth proportional to 17,993.28, 26,988.87 and 6,899.52 is: 10,348.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.28 : 26,988.87 = 6,899.52 : x
  2. Step 2: Convert to fraction form
    17,993.28/26,988.87 = 6,899.52/x
  3. Step 3: Cross multiply
    17,993.28x = 26,988.87 × 6,899.52
  4. Step 4: Simplify right side
    17,993.28x = 186,210,248.34
  5. Step 5: Solve for x
    x = 186,210,248.34/17,993.28
  6. Step 6: Final answer
    x = 10,348.88

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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.