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Finding the Fourth Proportional to 2,062.91, 3,095 and 657.25

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Solution

The fourth proportional to 2,062.91, 3,095 and 657.25 is: 986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,062.91 : 3,095 = 657.25 : x
  2. Step 2: Convert to fraction form
    2,062.91/3,095 = 657.25/x
  3. Step 3: Cross multiply
    2,062.91x = 3,095 × 657.25
  4. Step 4: Simplify right side
    2,062.91x = 2,034,188.75
  5. Step 5: Solve for x
    x = 2,034,188.75/2,062.91
  6. Step 6: Final answer
    x = 986.08

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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.