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Finding the Fourth Proportional to 8,833.34, 12,189 and 5,247.02

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Solution

The fourth proportional to 8,833.34, 12,189 and 5,247.02 is: 7,240.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.34 : 12,189 = 5,247.02 : x
  2. Step 2: Convert to fraction form
    8,833.34/12,189 = 5,247.02/x
  3. Step 3: Cross multiply
    8,833.34x = 12,189 × 5,247.02
  4. Step 4: Simplify right side
    8,833.34x = 63,955,926.78
  5. Step 5: Solve for x
    x = 63,955,926.78/8,833.34
  6. Step 6: Final answer
    x = 7,240.29

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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.