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Finding the Fourth Proportional to 5,077.99, 7,009.91 and 2,982.25

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Solution

The fourth proportional to 5,077.99, 7,009.91 and 2,982.25 is: 4,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.99 : 7,009.91 = 2,982.25 : x
  2. Step 2: Convert to fraction form
    5,077.99/7,009.91 = 2,982.25/x
  3. Step 3: Cross multiply
    5,077.99x = 7,009.91 × 2,982.25
  4. Step 4: Simplify right side
    5,077.99x = 20,905,304.10
  5. Step 5: Solve for x
    x = 20,905,304.10/5,077.99
  6. Step 6: Final answer
    x = 4,116.85

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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.