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Finding the Fourth Proportional to 8,250.90, 11,387.90 and 4,895.58

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Solution

The fourth proportional to 8,250.90, 11,387.90 and 4,895.58 is: 6,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.90 : 11,387.90 = 4,895.58 : x
  2. Step 2: Convert to fraction form
    8,250.90/11,387.90 = 4,895.58/x
  3. Step 3: Cross multiply
    8,250.90x = 11,387.90 × 4,895.58
  4. Step 4: Simplify right side
    8,250.90x = 55,750,351.00
  5. Step 5: Solve for x
    x = 55,750,351.00/8,250.90
  6. Step 6: Final answer
    x = 6,756.88

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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.