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Finding the Fourth Proportional to 7,208.19, 9,944.97 and 4,020.97

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Solution

The fourth proportional to 7,208.19, 9,944.97 and 4,020.97 is: 5,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.19 : 9,944.97 = 4,020.97 : x
  2. Step 2: Convert to fraction form
    7,208.19/9,944.97 = 4,020.97/x
  3. Step 3: Cross multiply
    7,208.19x = 9,944.97 × 4,020.97
  4. Step 4: Simplify right side
    7,208.19x = 39,988,404.73
  5. Step 5: Solve for x
    x = 39,988,404.73/7,208.19
  6. Step 6: Final answer
    x = 5,547.63

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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.