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Finding the Fourth Proportional to 9,208.87, 12,708.23 and 5,017.12

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Solution

The fourth proportional to 9,208.87, 12,708.23 and 5,017.12 is: 6,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.87 : 12,708.23 = 5,017.12 : x
  2. Step 2: Convert to fraction form
    9,208.87/12,708.23 = 5,017.12/x
  3. Step 3: Cross multiply
    9,208.87x = 12,708.23 × 5,017.12
  4. Step 4: Simplify right side
    9,208.87x = 63,758,626.27
  5. Step 5: Solve for x
    x = 63,758,626.27/9,208.87
  6. Step 6: Final answer
    x = 6,923.61

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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.