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Finding the Fourth Proportional to 40,968.10, 61,342.80 and 40,968.10

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Solution

The fourth proportional to 40,968.10, 61,342.80 and 40,968.10 is: 61,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,968.10 : 61,342.80 = 40,968.10 : x
  2. Step 2: Convert to fraction form
    40,968.10/61,342.80 = 40,968.10/x
  3. Step 3: Cross multiply
    40,968.10x = 61,342.80 × 40,968.10
  4. Step 4: Simplify right side
    40,968.10x = 2,513,097,964.68
  5. Step 5: Solve for x
    x = 2,513,097,964.68/40,968.10
  6. Step 6: Final answer
    x = 61,342.80

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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.