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Finding the Fourth Proportional to 48,608.60, 72,918.98 and 19,022.61

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Solution

The fourth proportional to 48,608.60, 72,918.98 and 19,022.61 is: 28,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,608.60 : 72,918.98 = 19,022.61 : x
  2. Step 2: Convert to fraction form
    48,608.60/72,918.98 = 19,022.61/x
  3. Step 3: Cross multiply
    48,608.60x = 72,918.98 × 19,022.61
  4. Step 4: Simplify right side
    48,608.60x = 1,387,109,223.02
  5. Step 5: Solve for x
    x = 1,387,109,223.02/48,608.60
  6. Step 6: Final answer
    x = 28,536.30

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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.