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Finding the Fourth Proportional to 8,575.67, 12,863.96 and 3,031.63

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Solution

The fourth proportional to 8,575.67, 12,863.96 and 3,031.63 is: 4,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.67 : 12,863.96 = 3,031.63 : x
  2. Step 2: Convert to fraction form
    8,575.67/12,863.96 = 3,031.63/x
  3. Step 3: Cross multiply
    8,575.67x = 12,863.96 × 3,031.63
  4. Step 4: Simplify right side
    8,575.67x = 38,998,748.16
  5. Step 5: Solve for x
    x = 38,998,748.16/8,575.67
  6. Step 6: Final answer
    x = 4,547.60

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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.