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Finding the Fourth Proportional to 71,351.84, 107,028.81 and 33,915.76

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Solution

The fourth proportional to 71,351.84, 107,028.81 and 33,915.76 is: 50,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,351.84 : 107,028.81 = 33,915.76 : x
  2. Step 2: Convert to fraction form
    71,351.84/107,028.81 = 33,915.76/x
  3. Step 3: Cross multiply
    71,351.84x = 107,028.81 × 33,915.76
  4. Step 4: Simplify right side
    71,351.84x = 3,629,963,165.47
  5. Step 5: Solve for x
    x = 3,629,963,165.47/71,351.84
  6. Step 6: Final answer
    x = 50,874.13

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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.