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Finding the Fourth Proportional to 8,873.16, 13,276.78 and 5,570.80

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Solution

The fourth proportional to 8,873.16, 13,276.78 and 5,570.80 is: 8,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.16 : 13,276.78 = 5,570.80 : x
  2. Step 2: Convert to fraction form
    8,873.16/13,276.78 = 5,570.80/x
  3. Step 3: Cross multiply
    8,873.16x = 13,276.78 × 5,570.80
  4. Step 4: Simplify right side
    8,873.16x = 73,962,286.02
  5. Step 5: Solve for x
    x = 73,962,286.02/8,873.16
  6. Step 6: Final answer
    x = 8,335.51

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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.