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Finding the Fourth Proportional to 48,003, 66,244.14 and 28,131

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Solution

The fourth proportional to 48,003, 66,244.14 and 28,131 is: 38,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,003 : 66,244.14 = 28,131 : x
  2. Step 2: Convert to fraction form
    48,003/66,244.14 = 28,131/x
  3. Step 3: Cross multiply
    48,003x = 66,244.14 × 28,131
  4. Step 4: Simplify right side
    48,003x = 1,863,513,902.34
  5. Step 5: Solve for x
    x = 1,863,513,902.34/48,003
  6. Step 6: Final answer
    x = 38,820.78

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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.