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Finding the Fourth Proportional to 18,843,612.40, 28,265,418.60 and 17,583,900.40

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Solution

The fourth proportional to 18,843,612.40, 28,265,418.60 and 17,583,900.40 is: 26,375,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843,612.40 : 28,265,418.60 = 17,583,900.40 : x
  2. Step 2: Convert to fraction form
    18,843,612.40/28,265,418.60 = 17,583,900.40/x
  3. Step 3: Cross multiply
    18,843,612.40x = 28,265,418.60 × 17,583,900.40
  4. Step 4: Simplify right side
    18,843,612.40x = 497,016,305,426,707.44
  5. Step 5: Solve for x
    x = 497,016,305,426,707.44/18,843,612.40
  6. Step 6: Final answer
    x = 26,375,850.60

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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.