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Finding the Fourth Proportional to 7,224.75, 9,970.97 and 4,081.14

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Solution

The fourth proportional to 7,224.75, 9,970.97 and 4,081.14 is: 5,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.75 : 9,970.97 = 4,081.14 : x
  2. Step 2: Convert to fraction form
    7,224.75/9,970.97 = 4,081.14/x
  3. Step 3: Cross multiply
    7,224.75x = 9,970.97 × 4,081.14
  4. Step 4: Simplify right side
    7,224.75x = 40,692,904.10
  5. Step 5: Solve for x
    x = 40,692,904.10/7,224.75
  6. Step 6: Final answer
    x = 5,632.43

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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.