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Finding the Fourth Proportional to 8,763.60, 13,150.44 and 4,867.68

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Solution

The fourth proportional to 8,763.60, 13,150.44 and 4,867.68 is: 7,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.60 : 13,150.44 = 4,867.68 : x
  2. Step 2: Convert to fraction form
    8,763.60/13,150.44 = 4,867.68/x
  3. Step 3: Cross multiply
    8,763.60x = 13,150.44 × 4,867.68
  4. Step 4: Simplify right side
    8,763.60x = 64,012,133.78
  5. Step 5: Solve for x
    x = 64,012,133.78/8,763.60
  6. Step 6: Final answer
    x = 7,304.32

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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.