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Finding the Fourth Proportional to 6,275.36, 8,661.90 and 3,624.68

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Solution

The fourth proportional to 6,275.36, 8,661.90 and 3,624.68 is: 5,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.36 : 8,661.90 = 3,624.68 : x
  2. Step 2: Convert to fraction form
    6,275.36/8,661.90 = 3,624.68/x
  3. Step 3: Cross multiply
    6,275.36x = 8,661.90 × 3,624.68
  4. Step 4: Simplify right side
    6,275.36x = 31,396,615.69
  5. Step 5: Solve for x
    x = 31,396,615.69/6,275.36
  6. Step 6: Final answer
    x = 5,003.16

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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.