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Finding the Fourth Proportional to 22,159.74, 30,579.99 and 12,223.74

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Solution

The fourth proportional to 22,159.74, 30,579.99 and 12,223.74 is: 16,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.74 : 30,579.99 = 12,223.74 : x
  2. Step 2: Convert to fraction form
    22,159.74/30,579.99 = 12,223.74/x
  3. Step 3: Cross multiply
    22,159.74x = 30,579.99 × 12,223.74
  4. Step 4: Simplify right side
    22,159.74x = 373,801,846.96
  5. Step 5: Solve for x
    x = 373,801,846.96/22,159.74
  6. Step 6: Final answer
    x = 16,868.51

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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.