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Finding the Fourth Proportional to 40,405.70, 60,619.35 and 36,053.30

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Solution

The fourth proportional to 40,405.70, 60,619.35 and 36,053.30 is: 54,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.70 : 60,619.35 = 36,053.30 : x
  2. Step 2: Convert to fraction form
    40,405.70/60,619.35 = 36,053.30/x
  3. Step 3: Cross multiply
    40,405.70x = 60,619.35 × 36,053.30
  4. Step 4: Simplify right side
    40,405.70x = 2,185,527,611.36
  5. Step 5: Solve for x
    x = 2,185,527,611.36/40,405.70
  6. Step 6: Final answer
    x = 54,089.59

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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.