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Finding the Fourth Proportional to 8,710.88, 13,064.88 and 2,867.56

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Solution

The fourth proportional to 8,710.88, 13,064.88 and 2,867.56 is: 4,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.88 : 13,064.88 = 2,867.56 : x
  2. Step 2: Convert to fraction form
    8,710.88/13,064.88 = 2,867.56/x
  3. Step 3: Cross multiply
    8,710.88x = 13,064.88 × 2,867.56
  4. Step 4: Simplify right side
    8,710.88x = 37,464,327.29
  5. Step 5: Solve for x
    x = 37,464,327.29/8,710.88
  6. Step 6: Final answer
    x = 4,300.87

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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.