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Finding the Fourth Proportional to 37,871.70, 52,256.80 and 21,953.04

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Solution

The fourth proportional to 37,871.70, 52,256.80 and 21,953.04 is: 30,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,871.70 : 52,256.80 = 21,953.04 : x
  2. Step 2: Convert to fraction form
    37,871.70/52,256.80 = 21,953.04/x
  3. Step 3: Cross multiply
    37,871.70x = 52,256.80 × 21,953.04
  4. Step 4: Simplify right side
    37,871.70x = 1,147,195,620.67
  5. Step 5: Solve for x
    x = 1,147,195,620.67/37,871.70
  6. Step 6: Final answer
    x = 30,291.63

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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.