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Finding the Fourth Proportional to 17,899.28, 26,856.16 and 8,031.68

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Solution

The fourth proportional to 17,899.28, 26,856.16 and 8,031.68 is: 12,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899.28 : 26,856.16 = 8,031.68 : x
  2. Step 2: Convert to fraction form
    17,899.28/26,856.16 = 8,031.68/x
  3. Step 3: Cross multiply
    17,899.28x = 26,856.16 × 8,031.68
  4. Step 4: Simplify right side
    17,899.28x = 215,700,083.15
  5. Step 5: Solve for x
    x = 215,700,083.15/17,899.28
  6. Step 6: Final answer
    x = 12,050.77

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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.