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Finding the Fourth Proportional to 8,188.68, 12,286.06 and 4,904.12

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Solution

The fourth proportional to 8,188.68, 12,286.06 and 4,904.12 is: 7,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.68 : 12,286.06 = 4,904.12 : x
  2. Step 2: Convert to fraction form
    8,188.68/12,286.06 = 4,904.12/x
  3. Step 3: Cross multiply
    8,188.68x = 12,286.06 × 4,904.12
  4. Step 4: Simplify right side
    8,188.68x = 60,252,312.57
  5. Step 5: Solve for x
    x = 60,252,312.57/8,188.68
  6. Step 6: Final answer
    x = 7,358.00

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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.