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Finding the Fourth Proportional to 40,940.04, 61,410.04 and 11,357.88

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Solution

The fourth proportional to 40,940.04, 61,410.04 and 11,357.88 is: 17,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940.04 : 61,410.04 = 11,357.88 : x
  2. Step 2: Convert to fraction form
    40,940.04/61,410.04 = 11,357.88/x
  3. Step 3: Cross multiply
    40,940.04x = 61,410.04 × 11,357.88
  4. Step 4: Simplify right side
    40,940.04x = 697,487,865.12
  5. Step 5: Solve for x
    x = 697,487,865.12/40,940.04
  6. Step 6: Final answer
    x = 17,036.81

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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.