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Finding the Fourth Proportional to 6,630.64, 9,932.20 and 4,543.60

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Solution

The fourth proportional to 6,630.64, 9,932.20 and 4,543.60 is: 6,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.64 : 9,932.20 = 4,543.60 : x
  2. Step 2: Convert to fraction form
    6,630.64/9,932.20 = 4,543.60/x
  3. Step 3: Cross multiply
    6,630.64x = 9,932.20 × 4,543.60
  4. Step 4: Simplify right side
    6,630.64x = 45,127,943.92
  5. Step 5: Solve for x
    x = 45,127,943.92/6,630.64
  6. Step 6: Final answer
    x = 6,805.97

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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.