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Finding the Fourth Proportional to 6,291.17, 8,679.17 and 4,167.17

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Solution

The fourth proportional to 6,291.17, 8,679.17 and 4,167.17 is: 5,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.17 : 8,679.17 = 4,167.17 : x
  2. Step 2: Convert to fraction form
    6,291.17/8,679.17 = 4,167.17/x
  3. Step 3: Cross multiply
    6,291.17x = 8,679.17 × 4,167.17
  4. Step 4: Simplify right side
    6,291.17x = 36,167,556.01
  5. Step 5: Solve for x
    x = 36,167,556.01/6,291.17
  6. Step 6: Final answer
    x = 5,748.94

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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.