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Finding the Fourth Proportional to 24,721.70, 37,046.10 and 21,003.80

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Solution

The fourth proportional to 24,721.70, 37,046.10 and 21,003.80 is: 31,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,721.70 : 37,046.10 = 21,003.80 : x
  2. Step 2: Convert to fraction form
    24,721.70/37,046.10 = 21,003.80/x
  3. Step 3: Cross multiply
    24,721.70x = 37,046.10 × 21,003.80
  4. Step 4: Simplify right side
    24,721.70x = 778,108,875.18
  5. Step 5: Solve for x
    x = 778,108,875.18/24,721.70
  6. Step 6: Final answer
    x = 31,474.73

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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.