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Finding the Fourth Proportional to 8,811.84, 12,163.04 and 5,088.32

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Solution

The fourth proportional to 8,811.84, 12,163.04 and 5,088.32 is: 7,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.84 : 12,163.04 = 5,088.32 : x
  2. Step 2: Convert to fraction form
    8,811.84/12,163.04 = 5,088.32/x
  3. Step 3: Cross multiply
    8,811.84x = 12,163.04 × 5,088.32
  4. Step 4: Simplify right side
    8,811.84x = 61,889,439.69
  5. Step 5: Solve for x
    x = 61,889,439.69/8,811.84
  6. Step 6: Final answer
    x = 7,023.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.