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Finding the Fourth Proportional to 17,988.81, 26,982.28 and 6,301.11

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Solution

The fourth proportional to 17,988.81, 26,982.28 and 6,301.11 is: 9,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.81 : 26,982.28 = 6,301.11 : x
  2. Step 2: Convert to fraction form
    17,988.81/26,982.28 = 6,301.11/x
  3. Step 3: Cross multiply
    17,988.81x = 26,982.28 × 6,301.11
  4. Step 4: Simplify right side
    17,988.81x = 170,018,314.33
  5. Step 5: Solve for x
    x = 170,018,314.33/17,988.81
  6. Step 6: Final answer
    x = 9,451.34

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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.