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Finding the Fourth Proportional to 8,088.56, 12,132.72 and 2,616.56

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Solution

The fourth proportional to 8,088.56, 12,132.72 and 2,616.56 is: 3,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.56 : 12,132.72 = 2,616.56 : x
  2. Step 2: Convert to fraction form
    8,088.56/12,132.72 = 2,616.56/x
  3. Step 3: Cross multiply
    8,088.56x = 12,132.72 × 2,616.56
  4. Step 4: Simplify right side
    8,088.56x = 31,745,989.84
  5. Step 5: Solve for x
    x = 31,745,989.84/8,088.56
  6. Step 6: Final answer
    x = 3,924.80

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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.