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Finding the Fourth Proportional to 22,195.65, 30,629.82 and 12,124.10

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Solution

The fourth proportional to 22,195.65, 30,629.82 and 12,124.10 is: 16,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.65 : 30,629.82 = 12,124.10 : x
  2. Step 2: Convert to fraction form
    22,195.65/30,629.82 = 12,124.10/x
  3. Step 3: Cross multiply
    22,195.65x = 30,629.82 × 12,124.10
  4. Step 4: Simplify right side
    22,195.65x = 371,358,847.51
  5. Step 5: Solve for x
    x = 371,358,847.51/22,195.65
  6. Step 6: Final answer
    x = 16,731.15

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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.