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Finding the Fourth Proportional to 40,655.90, 60,942.54 and 27,509.60

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Solution

The fourth proportional to 40,655.90, 60,942.54 and 27,509.60 is: 41,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,655.90 : 60,942.54 = 27,509.60 : x
  2. Step 2: Convert to fraction form
    40,655.90/60,942.54 = 27,509.60/x
  3. Step 3: Cross multiply
    40,655.90x = 60,942.54 × 27,509.60
  4. Step 4: Simplify right side
    40,655.90x = 1,676,504,898.38
  5. Step 5: Solve for x
    x = 1,676,504,898.38/40,655.90
  6. Step 6: Final answer
    x = 41,236.45

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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.