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Finding the Fourth Proportional to 8,876.74, 13,302.42 and 6,518.24

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Solution

The fourth proportional to 8,876.74, 13,302.42 and 6,518.24 is: 9,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.74 : 13,302.42 = 6,518.24 : x
  2. Step 2: Convert to fraction form
    8,876.74/13,302.42 = 6,518.24/x
  3. Step 3: Cross multiply
    8,876.74x = 13,302.42 × 6,518.24
  4. Step 4: Simplify right side
    8,876.74x = 86,708,385.21
  5. Step 5: Solve for x
    x = 86,708,385.21/8,876.74
  6. Step 6: Final answer
    x = 9,768.04

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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.