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Finding the Fourth Proportional to 8,757.66, 13,131.60 and 3,557.46

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Solution

The fourth proportional to 8,757.66, 13,131.60 and 3,557.46 is: 5,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.66 : 13,131.60 = 3,557.46 : x
  2. Step 2: Convert to fraction form
    8,757.66/13,131.60 = 3,557.46/x
  3. Step 3: Cross multiply
    8,757.66x = 13,131.60 × 3,557.46
  4. Step 4: Simplify right side
    8,757.66x = 46,715,141.74
  5. Step 5: Solve for x
    x = 46,715,141.74/8,757.66
  6. Step 6: Final answer
    x = 5,334.20

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1.5x scale

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.