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Finding the Fourth Proportional to 55,065.94, 75,990.99 and 32,709.94

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Solution

The fourth proportional to 55,065.94, 75,990.99 and 32,709.94 is: 45,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065.94 : 75,990.99 = 32,709.94 : x
  2. Step 2: Convert to fraction form
    55,065.94/75,990.99 = 32,709.94/x
  3. Step 3: Cross multiply
    55,065.94x = 75,990.99 × 32,709.94
  4. Step 4: Simplify right side
    55,065.94x = 2,485,660,656.13
  5. Step 5: Solve for x
    x = 2,485,660,656.13/55,065.94
  6. Step 6: Final answer
    x = 45,139.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.