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Finding the Fourth Proportional to 40,705.70, 60,985.65 and 36,040.10

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Solution

The fourth proportional to 40,705.70, 60,985.65 and 36,040.10 is: 53,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,705.70 : 60,985.65 = 36,040.10 : x
  2. Step 2: Convert to fraction form
    40,705.70/60,985.65 = 36,040.10/x
  3. Step 3: Cross multiply
    40,705.70x = 60,985.65 × 36,040.10
  4. Step 4: Simplify right side
    40,705.70x = 2,197,928,924.57
  5. Step 5: Solve for x
    x = 2,197,928,924.57/40,705.70
  6. Step 6: Final answer
    x = 53,995.61

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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.