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Finding the Fourth Proportional to 34,637.70, 47,799.87 and 18,722.11

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Solution

The fourth proportional to 34,637.70, 47,799.87 and 18,722.11 is: 25,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,637.70 : 47,799.87 = 18,722.11 : x
  2. Step 2: Convert to fraction form
    34,637.70/47,799.87 = 18,722.11/x
  3. Step 3: Cross multiply
    34,637.70x = 47,799.87 × 18,722.11
  4. Step 4: Simplify right side
    34,637.70x = 894,914,424.13
  5. Step 5: Solve for x
    x = 894,914,424.13/34,637.70
  6. Step 6: Final answer
    x = 25,836.43

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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.