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Finding the Fourth Proportional to 22,699.69, 34,105.14 and 21,440.80

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Solution

The fourth proportional to 22,699.69, 34,105.14 and 21,440.80 is: 32,213.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.69 : 34,105.14 = 21,440.80 : x
  2. Step 2: Convert to fraction form
    22,699.69/34,105.14 = 21,440.80/x
  3. Step 3: Cross multiply
    22,699.69x = 34,105.14 × 21,440.80
  4. Step 4: Simplify right side
    22,699.69x = 731,241,485.71
  5. Step 5: Solve for x
    x = 731,241,485.71/22,699.69
  6. Step 6: Final answer
    x = 32,213.72

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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.