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Finding the Fourth Proportional to 6,340.99, 8,747.65 and 4,103.59

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Solution

The fourth proportional to 6,340.99, 8,747.65 and 4,103.59 is: 5,661.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.99 : 8,747.65 = 4,103.59 : x
  2. Step 2: Convert to fraction form
    6,340.99/8,747.65 = 4,103.59/x
  3. Step 3: Cross multiply
    6,340.99x = 8,747.65 × 4,103.59
  4. Step 4: Simplify right side
    6,340.99x = 35,896,769.06
  5. Step 5: Solve for x
    x = 35,896,769.06/6,340.99
  6. Step 6: Final answer
    x = 5,661.07

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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.