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Finding the Fourth Proportional to 22,758.75, 34,138.08 and 6,118.79

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Solution

The fourth proportional to 22,758.75, 34,138.08 and 6,118.79 is: 9,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,758.75 : 34,138.08 = 6,118.79 : x
  2. Step 2: Convert to fraction form
    22,758.75/34,138.08 = 6,118.79/x
  3. Step 3: Cross multiply
    22,758.75x = 34,138.08 × 6,118.79
  4. Step 4: Simplify right side
    22,758.75x = 208,883,571.83
  5. Step 5: Solve for x
    x = 208,883,571.83/22,758.75
  6. Step 6: Final answer
    x = 9,178.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.