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Finding the Fourth Proportional to 24,786.90, 34,212.60 and 15,350.22

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Solution

The fourth proportional to 24,786.90, 34,212.60 and 15,350.22 is: 21,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,786.90 : 34,212.60 = 15,350.22 : x
  2. Step 2: Convert to fraction form
    24,786.90/34,212.60 = 15,350.22/x
  3. Step 3: Cross multiply
    24,786.90x = 34,212.60 × 15,350.22
  4. Step 4: Simplify right side
    24,786.90x = 525,170,936.77
  5. Step 5: Solve for x
    x = 525,170,936.77/24,786.90
  6. Step 6: Final answer
    x = 21,187.44

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Double scale
Find fourth proportional to 24,787.90, 34,213.98 and 15,351.22
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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.