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Finding the Fourth Proportional to 6,766.31, 9,337.70 and 3,782.48

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Solution

The fourth proportional to 6,766.31, 9,337.70 and 3,782.48 is: 5,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,766.31 : 9,337.70 = 3,782.48 : x
  2. Step 2: Convert to fraction form
    6,766.31/9,337.70 = 3,782.48/x
  3. Step 3: Cross multiply
    6,766.31x = 9,337.70 × 3,782.48
  4. Step 4: Simplify right side
    6,766.31x = 35,319,663.50
  5. Step 5: Solve for x
    x = 35,319,663.50/6,766.31
  6. Step 6: Final answer
    x = 5,219.93

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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.