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Finding the Fourth Proportional to 8,854.56, 13,281.78 and 2,698.56

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Solution

The fourth proportional to 8,854.56, 13,281.78 and 2,698.56 is: 4,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.56 : 13,281.78 = 2,698.56 : x
  2. Step 2: Convert to fraction form
    8,854.56/13,281.78 = 2,698.56/x
  3. Step 3: Cross multiply
    8,854.56x = 13,281.78 × 2,698.56
  4. Step 4: Simplify right side
    8,854.56x = 35,841,680.24
  5. Step 5: Solve for x
    x = 35,841,680.24/8,854.56
  6. Step 6: Final answer
    x = 4,047.82

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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.