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Finding the Fourth Proportional to 66,263.91, 99,427.79 and 32,986.90

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Solution

The fourth proportional to 66,263.91, 99,427.79 and 32,986.90 is: 49,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.91 : 99,427.79 = 32,986.90 : x
  2. Step 2: Convert to fraction form
    66,263.91/99,427.79 = 32,986.90/x
  3. Step 3: Cross multiply
    66,263.91x = 99,427.79 × 32,986.90
  4. Step 4: Simplify right side
    66,263.91x = 3,279,814,565.95
  5. Step 5: Solve for x
    x = 3,279,814,565.95/66,263.91
  6. Step 6: Final answer
    x = 49,496.24

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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.