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Finding the Fourth Proportional to 50,390.40, 75,643.80 and 27,062.40

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Solution

The fourth proportional to 50,390.40, 75,643.80 and 27,062.40 is: 40,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,390.40 : 75,643.80 = 27,062.40 : x
  2. Step 2: Convert to fraction form
    50,390.40/75,643.80 = 27,062.40/x
  3. Step 3: Cross multiply
    50,390.40x = 75,643.80 × 27,062.40
  4. Step 4: Simplify right side
    50,390.40x = 2,047,102,773.12
  5. Step 5: Solve for x
    x = 2,047,102,773.12/50,390.40
  6. Step 6: Final answer
    x = 40,624.86

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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.