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Finding the Fourth Proportional to 73,962.66, 110,949.66 and 21,372.60

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Solution

The fourth proportional to 73,962.66, 110,949.66 and 21,372.60 is: 32,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,962.66 : 110,949.66 = 21,372.60 : x
  2. Step 2: Convert to fraction form
    73,962.66/110,949.66 = 21,372.60/x
  3. Step 3: Cross multiply
    73,962.66x = 110,949.66 × 21,372.60
  4. Step 4: Simplify right side
    73,962.66x = 2,371,282,703.32
  5. Step 5: Solve for x
    x = 2,371,282,703.32/73,962.66
  6. Step 6: Final answer
    x = 32,060.54

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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.