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Finding the Fourth Proportional to 40,362.16, 60,455.72 and 19,542

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Solution

The fourth proportional to 40,362.16, 60,455.72 and 19,542 is: 29,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,362.16 : 60,455.72 = 19,542 : x
  2. Step 2: Convert to fraction form
    40,362.16/60,455.72 = 19,542/x
  3. Step 3: Cross multiply
    40,362.16x = 60,455.72 × 19,542
  4. Step 4: Simplify right side
    40,362.16x = 1,181,425,680.24
  5. Step 5: Solve for x
    x = 1,181,425,680.24/40,362.16
  6. Step 6: Final answer
    x = 29,270.63

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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.