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Finding the Fourth Proportional to 8,763.84, 12,095.22 and 5,785.88

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Solution

The fourth proportional to 8,763.84, 12,095.22 and 5,785.88 is: 7,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.84 : 12,095.22 = 5,785.88 : x
  2. Step 2: Convert to fraction form
    8,763.84/12,095.22 = 5,785.88/x
  3. Step 3: Cross multiply
    8,763.84x = 12,095.22 × 5,785.88
  4. Step 4: Simplify right side
    8,763.84x = 69,981,431.02
  5. Step 5: Solve for x
    x = 69,981,431.02/8,763.84
  6. Step 6: Final answer
    x = 7,985.25

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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.