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Finding the Fourth Proportional to 16,606.20, 22,869.90 and 16,243.32

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Solution

The fourth proportional to 16,606.20, 22,869.90 and 16,243.32 is: 22,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,606.20 : 22,869.90 = 16,243.32 : x
  2. Step 2: Convert to fraction form
    16,606.20/22,869.90 = 16,243.32/x
  3. Step 3: Cross multiply
    16,606.20x = 22,869.90 × 16,243.32
  4. Step 4: Simplify right side
    16,606.20x = 371,483,104.07
  5. Step 5: Solve for x
    x = 371,483,104.07/16,606.20
  6. Step 6: Final answer
    x = 22,370.15

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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.