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Finding the Fourth Proportional to 17,920.29, 26,871.18 and 8,051.13

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Solution

The fourth proportional to 17,920.29, 26,871.18 and 8,051.13 is: 12,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.29 : 26,871.18 = 8,051.13 : x
  2. Step 2: Convert to fraction form
    17,920.29/26,871.18 = 8,051.13/x
  3. Step 3: Cross multiply
    17,920.29x = 26,871.18 × 8,051.13
  4. Step 4: Simplify right side
    17,920.29x = 216,343,363.43
  5. Step 5: Solve for x
    x = 216,343,363.43/17,920.29
  6. Step 6: Final answer
    x = 12,072.54

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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.