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Finding the Fourth Proportional to 37,472.72, 51,717.48 and 21,556.88

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Solution

The fourth proportional to 37,472.72, 51,717.48 and 21,556.88 is: 29,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,472.72 : 51,717.48 = 21,556.88 : x
  2. Step 2: Convert to fraction form
    37,472.72/51,717.48 = 21,556.88/x
  3. Step 3: Cross multiply
    37,472.72x = 51,717.48 × 21,556.88
  4. Step 4: Simplify right side
    37,472.72x = 1,114,867,510.26
  5. Step 5: Solve for x
    x = 1,114,867,510.26/37,472.72
  6. Step 6: Final answer
    x = 29,751.44

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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.