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Finding the Fourth Proportional to 7,225.93, 9,980.01 and 4,863.97

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Solution

The fourth proportional to 7,225.93, 9,980.01 and 4,863.97 is: 6,717.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.93 : 9,980.01 = 4,863.97 : x
  2. Step 2: Convert to fraction form
    7,225.93/9,980.01 = 4,863.97/x
  3. Step 3: Cross multiply
    7,225.93x = 9,980.01 × 4,863.97
  4. Step 4: Simplify right side
    7,225.93x = 48,542,469.24
  5. Step 5: Solve for x
    x = 48,542,469.24/7,225.93
  6. Step 6: Final answer
    x = 6,717.82

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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.