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Finding the Fourth Proportional to 7,600.80, 10,486.08 and 4,456.38

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Solution

The fourth proportional to 7,600.80, 10,486.08 and 4,456.38 is: 6,148.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,600.80 : 10,486.08 = 4,456.38 : x
  2. Step 2: Convert to fraction form
    7,600.80/10,486.08 = 4,456.38/x
  3. Step 3: Cross multiply
    7,600.80x = 10,486.08 × 4,456.38
  4. Step 4: Simplify right side
    7,600.80x = 46,729,957.19
  5. Step 5: Solve for x
    x = 46,729,957.19/7,600.80
  6. Step 6: Final answer
    x = 6,148.03

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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.