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Finding the Fourth Proportional to 8,888.64, 13,333.20 and 3,694.92

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Solution

The fourth proportional to 8,888.64, 13,333.20 and 3,694.92 is: 5,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.64 : 13,333.20 = 3,694.92 : x
  2. Step 2: Convert to fraction form
    8,888.64/13,333.20 = 3,694.92/x
  3. Step 3: Cross multiply
    8,888.64x = 13,333.20 × 3,694.92
  4. Step 4: Simplify right side
    8,888.64x = 49,265,107.34
  5. Step 5: Solve for x
    x = 49,265,107.34/8,888.64
  6. Step 6: Final answer
    x = 5,542.48

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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.