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Finding the Fourth Proportional to 69,405.21, 95,779.86 and 37,574.79

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Solution

The fourth proportional to 69,405.21, 95,779.86 and 37,574.79 is: 51,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,405.21 : 95,779.86 = 37,574.79 : x
  2. Step 2: Convert to fraction form
    69,405.21/95,779.86 = 37,574.79/x
  3. Step 3: Cross multiply
    69,405.21x = 95,779.86 × 37,574.79
  4. Step 4: Simplify right side
    69,405.21x = 3,598,908,125.73
  5. Step 5: Solve for x
    x = 3,598,908,125.73/69,405.21
  6. Step 6: Final answer
    x = 51,853.57

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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.