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Finding the Fourth Proportional to 40,059.01, 60,080.99 and 18,705.91

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Solution

The fourth proportional to 40,059.01, 60,080.99 and 18,705.91 is: 28,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,059.01 : 60,080.99 = 18,705.91 : x
  2. Step 2: Convert to fraction form
    40,059.01/60,080.99 = 18,705.91/x
  3. Step 3: Cross multiply
    40,059.01x = 60,080.99 × 18,705.91
  4. Step 4: Simplify right side
    40,059.01x = 1,123,869,734.77
  5. Step 5: Solve for x
    x = 1,123,869,734.77/40,059.01
  6. Step 6: Final answer
    x = 28,055.36

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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.