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Finding the Fourth Proportional to 22,708.70, 34,010.23 and 21,920.32

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Solution

The fourth proportional to 22,708.70, 34,010.23 and 21,920.32 is: 32,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.70 : 34,010.23 = 21,920.32 : x
  2. Step 2: Convert to fraction form
    22,708.70/34,010.23 = 21,920.32/x
  3. Step 3: Cross multiply
    22,708.70x = 34,010.23 × 21,920.32
  4. Step 4: Simplify right side
    22,708.70x = 745,515,153.69
  5. Step 5: Solve for x
    x = 745,515,153.69/22,708.70
  6. Step 6: Final answer
    x = 32,829.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.