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Finding the Fourth Proportional to 7,167.52, 9,894.16 and 6,168.88

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Solution

The fourth proportional to 7,167.52, 9,894.16 and 6,168.88 is: 8,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.52 : 9,894.16 = 6,168.88 : x
  2. Step 2: Convert to fraction form
    7,167.52/9,894.16 = 6,168.88/x
  3. Step 3: Cross multiply
    7,167.52x = 9,894.16 × 6,168.88
  4. Step 4: Simplify right side
    7,167.52x = 61,035,885.74
  5. Step 5: Solve for x
    x = 61,035,885.74/7,167.52
  6. Step 6: Final answer
    x = 8,515.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.