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Finding the Fourth Proportional to 7,207.64, 9,950.46 and 4,981.49

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Solution

The fourth proportional to 7,207.64, 9,950.46 and 4,981.49 is: 6,877.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.64 : 9,950.46 = 4,981.49 : x
  2. Step 2: Convert to fraction form
    7,207.64/9,950.46 = 4,981.49/x
  3. Step 3: Cross multiply
    7,207.64x = 9,950.46 × 4,981.49
  4. Step 4: Simplify right side
    7,207.64x = 49,568,067.23
  5. Step 5: Solve for x
    x = 49,568,067.23/7,207.64
  6. Step 6: Final answer
    x = 6,877.16

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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.