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Finding the Fourth Proportional to 44,953.78, 67,444.05 and 19,990.39

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Solution

The fourth proportional to 44,953.78, 67,444.05 and 19,990.39 is: 29,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,953.78 : 67,444.05 = 19,990.39 : x
  2. Step 2: Convert to fraction form
    44,953.78/67,444.05 = 19,990.39/x
  3. Step 3: Cross multiply
    44,953.78x = 67,444.05 × 19,990.39
  4. Step 4: Simplify right side
    44,953.78x = 1,348,232,862.68
  5. Step 5: Solve for x
    x = 1,348,232,862.68/44,953.78
  6. Step 6: Final answer
    x = 29,991.53

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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.