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Finding the Fourth Proportional to 6,868.13, 9,486.99 and 5,079.24

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Solution

The fourth proportional to 6,868.13, 9,486.99 and 5,079.24 is: 7,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.13 : 9,486.99 = 5,079.24 : x
  2. Step 2: Convert to fraction form
    6,868.13/9,486.99 = 5,079.24/x
  3. Step 3: Cross multiply
    6,868.13x = 9,486.99 × 5,079.24
  4. Step 4: Simplify right side
    6,868.13x = 48,186,699.09
  5. Step 5: Solve for x
    x = 48,186,699.09/6,868.13
  6. Step 6: Final answer
    x = 7,015.99

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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.