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Finding the Fourth Proportional to 22,495.80, 31,044.20 and 13,064.97

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Solution

The fourth proportional to 22,495.80, 31,044.20 and 13,064.97 is: 18,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,495.80 : 31,044.20 = 13,064.97 : x
  2. Step 2: Convert to fraction form
    22,495.80/31,044.20 = 13,064.97/x
  3. Step 3: Cross multiply
    22,495.80x = 31,044.20 × 13,064.97
  4. Step 4: Simplify right side
    22,495.80x = 405,591,541.67
  5. Step 5: Solve for x
    x = 405,591,541.67/22,495.80
  6. Step 6: Final answer
    x = 18,029.66

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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.