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Finding the Fourth Proportional to 49,398.90, 74,112.22 and 19,837.49

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Solution

The fourth proportional to 49,398.90, 74,112.22 and 19,837.49 is: 29,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,398.90 : 74,112.22 = 19,837.49 : x
  2. Step 2: Convert to fraction form
    49,398.90/74,112.22 = 19,837.49/x
  3. Step 3: Cross multiply
    49,398.90x = 74,112.22 × 19,837.49
  4. Step 4: Simplify right side
    49,398.90x = 1,470,200,423.13
  5. Step 5: Solve for x
    x = 1,470,200,423.13/49,398.90
  6. Step 6: Final answer
    x = 29,761.81

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1.5x scale

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.