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Finding the Fourth Proportional to 22,377.49, 30,881.67 and 12,306.67

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Solution

The fourth proportional to 22,377.49, 30,881.67 and 12,306.67 is: 16,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,377.49 : 30,881.67 = 12,306.67 : x
  2. Step 2: Convert to fraction form
    22,377.49/30,881.67 = 12,306.67/x
  3. Step 3: Cross multiply
    22,377.49x = 30,881.67 × 12,306.67
  4. Step 4: Simplify right side
    22,377.49x = 380,050,521.74
  5. Step 5: Solve for x
    x = 380,050,521.74/22,377.49
  6. Step 6: Final answer
    x = 16,983.61

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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.