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Finding the Fourth Proportional to 8,865.84, 12,234.22 and 5,088.91

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Solution

The fourth proportional to 8,865.84, 12,234.22 and 5,088.91 is: 7,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.84 : 12,234.22 = 5,088.91 : x
  2. Step 2: Convert to fraction form
    8,865.84/12,234.22 = 5,088.91/x
  3. Step 3: Cross multiply
    8,865.84x = 12,234.22 × 5,088.91
  4. Step 4: Simplify right side
    8,865.84x = 62,258,844.50
  5. Step 5: Solve for x
    x = 62,258,844.50/8,865.84
  6. Step 6: Final answer
    x = 7,022.33

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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.