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Finding the Fourth Proportional to 8,567.17, 12,841.94 and 4,179.20

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Solution

The fourth proportional to 8,567.17, 12,841.94 and 4,179.20 is: 6,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.17 : 12,841.94 = 4,179.20 : x
  2. Step 2: Convert to fraction form
    8,567.17/12,841.94 = 4,179.20/x
  3. Step 3: Cross multiply
    8,567.17x = 12,841.94 × 4,179.20
  4. Step 4: Simplify right side
    8,567.17x = 53,668,981.89
  5. Step 5: Solve for x
    x = 53,668,981.89/8,567.17
  6. Step 6: Final answer
    x = 6,264.50

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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.