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Finding the Fourth Proportional to 6,875.15, 10,321.29 and 6,843.56

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Solution

The fourth proportional to 6,875.15, 10,321.29 and 6,843.56 is: 10,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.15 : 10,321.29 = 6,843.56 : x
  2. Step 2: Convert to fraction form
    6,875.15/10,321.29 = 6,843.56/x
  3. Step 3: Cross multiply
    6,875.15x = 10,321.29 × 6,843.56
  4. Step 4: Simplify right side
    6,875.15x = 70,634,315.79
  5. Step 5: Solve for x
    x = 70,634,315.79/6,875.15
  6. Step 6: Final answer
    x = 10,273.87

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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.