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Finding the Fourth Proportional to 12,242.70, 16,894.86 and 6,937.38

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Solution

The fourth proportional to 12,242.70, 16,894.86 and 6,937.38 is: 9,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.70 : 16,894.86 = 6,937.38 : x
  2. Step 2: Convert to fraction form
    12,242.70/16,894.86 = 6,937.38/x
  3. Step 3: Cross multiply
    12,242.70x = 16,894.86 × 6,937.38
  4. Step 4: Simplify right side
    12,242.70x = 117,206,063.87
  5. Step 5: Solve for x
    x = 117,206,063.87/12,242.70
  6. Step 6: Final answer
    x = 9,573.55

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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.