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Finding the Fourth Proportional to 4,985.92, 7,488.60 and 4,062.16

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Solution

The fourth proportional to 4,985.92, 7,488.60 and 4,062.16 is: 6,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.92 : 7,488.60 = 4,062.16 : x
  2. Step 2: Convert to fraction form
    4,985.92/7,488.60 = 4,062.16/x
  3. Step 3: Cross multiply
    4,985.92x = 7,488.60 × 4,062.16
  4. Step 4: Simplify right side
    4,985.92x = 30,419,891.38
  5. Step 5: Solve for x
    x = 30,419,891.38/4,985.92
  6. Step 6: Final answer
    x = 6,101.16

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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.