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Finding the Fourth Proportional to 48,618.84, 72,899.07 and 19,001.37

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Solution

The fourth proportional to 48,618.84, 72,899.07 and 19,001.37 is: 28,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,618.84 : 72,899.07 = 19,001.37 : x
  2. Step 2: Convert to fraction form
    48,618.84/72,899.07 = 19,001.37/x
  3. Step 3: Cross multiply
    48,618.84x = 72,899.07 × 19,001.37
  4. Step 4: Simplify right side
    48,618.84x = 1,385,182,201.73
  5. Step 5: Solve for x
    x = 1,385,182,201.73/48,618.84
  6. Step 6: Final answer
    x = 28,490.65

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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.