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Finding the Fourth Proportional to 7,209.33, 9,947.99 and 4,224.48

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Solution

The fourth proportional to 7,209.33, 9,947.99 and 4,224.48 is: 5,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.33 : 9,947.99 = 4,224.48 : x
  2. Step 2: Convert to fraction form
    7,209.33/9,947.99 = 4,224.48/x
  3. Step 3: Cross multiply
    7,209.33x = 9,947.99 × 4,224.48
  4. Step 4: Simplify right side
    7,209.33x = 42,025,063.67
  5. Step 5: Solve for x
    x = 42,025,063.67/7,209.33
  6. Step 6: Final answer
    x = 5,829.26

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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.