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Finding the Fourth Proportional to 8,300.72, 12,448.65 and 6,836.24

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Solution

The fourth proportional to 8,300.72, 12,448.65 and 6,836.24 is: 10,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300.72 : 12,448.65 = 6,836.24 : x
  2. Step 2: Convert to fraction form
    8,300.72/12,448.65 = 6,836.24/x
  3. Step 3: Cross multiply
    8,300.72x = 12,448.65 × 6,836.24
  4. Step 4: Simplify right side
    8,300.72x = 85,101,959.08
  5. Step 5: Solve for x
    x = 85,101,959.08/8,300.72
  6. Step 6: Final answer
    x = 10,252.36

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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.