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Finding the Fourth Proportional to 55,643.40, 83,465.01 and 36,959.88

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Solution

The fourth proportional to 55,643.40, 83,465.01 and 36,959.88 is: 55,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.40 : 83,465.01 = 36,959.88 : x
  2. Step 2: Convert to fraction form
    55,643.40/83,465.01 = 36,959.88/x
  3. Step 3: Cross multiply
    55,643.40x = 83,465.01 × 36,959.88
  4. Step 4: Simplify right side
    55,643.40x = 3,084,856,753.80
  5. Step 5: Solve for x
    x = 3,084,856,753.80/55,643.40
  6. Step 6: Final answer
    x = 55,439.76

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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.