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Finding the Fourth Proportional to 40,490.74, 60,736.02 and 14,181.04

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Solution

The fourth proportional to 40,490.74, 60,736.02 and 14,181.04 is: 21,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.74 : 60,736.02 = 14,181.04 : x
  2. Step 2: Convert to fraction form
    40,490.74/60,736.02 = 14,181.04/x
  3. Step 3: Cross multiply
    40,490.74x = 60,736.02 × 14,181.04
  4. Step 4: Simplify right side
    40,490.74x = 861,299,929.06
  5. Step 5: Solve for x
    x = 861,299,929.06/40,490.74
  6. Step 6: Final answer
    x = 21,271.53

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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.