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Finding the Fourth Proportional to 5,224.71, 7,210.22 and 2,866.86

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Solution

The fourth proportional to 5,224.71, 7,210.22 and 2,866.86 is: 3,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224.71 : 7,210.22 = 2,866.86 : x
  2. Step 2: Convert to fraction form
    5,224.71/7,210.22 = 2,866.86/x
  3. Step 3: Cross multiply
    5,224.71x = 7,210.22 × 2,866.86
  4. Step 4: Simplify right side
    5,224.71x = 20,670,676.97
  5. Step 5: Solve for x
    x = 20,670,676.97/5,224.71
  6. Step 6: Final answer
    x = 3,956.33

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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.