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Finding the Fourth Proportional to 8,788.10, 13,184.42 and 3,859.14

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Solution

The fourth proportional to 8,788.10, 13,184.42 and 3,859.14 is: 5,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.10 : 13,184.42 = 3,859.14 : x
  2. Step 2: Convert to fraction form
    8,788.10/13,184.42 = 3,859.14/x
  3. Step 3: Cross multiply
    8,788.10x = 13,184.42 × 3,859.14
  4. Step 4: Simplify right side
    8,788.10x = 50,880,574.45
  5. Step 5: Solve for x
    x = 50,880,574.45/8,788.10
  6. Step 6: Final answer
    x = 5,789.72

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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.