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Finding the Fourth Proportional to 5,004.99, 6,908.19 and 3,115.46

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Solution

The fourth proportional to 5,004.99, 6,908.19 and 3,115.46 is: 4,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,004.99 : 6,908.19 = 3,115.46 : x
  2. Step 2: Convert to fraction form
    5,004.99/6,908.19 = 3,115.46/x
  3. Step 3: Cross multiply
    5,004.99x = 6,908.19 × 3,115.46
  4. Step 4: Simplify right side
    5,004.99x = 21,522,195.20
  5. Step 5: Solve for x
    x = 21,522,195.20/5,004.99
  6. Step 6: Final answer
    x = 4,300.15

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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.