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Finding the Fourth Proportional to 69,817.86, 96,349.05 and 37,986.98

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Solution

The fourth proportional to 69,817.86, 96,349.05 and 37,986.98 is: 52,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,817.86 : 96,349.05 = 37,986.98 : x
  2. Step 2: Convert to fraction form
    69,817.86/96,349.05 = 37,986.98/x
  3. Step 3: Cross multiply
    69,817.86x = 96,349.05 × 37,986.98
  4. Step 4: Simplify right side
    69,817.86x = 3,660,008,953.62
  5. Step 5: Solve for x
    x = 3,660,008,953.62/69,817.86
  6. Step 6: Final answer
    x = 52,422.24

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1.5x scale

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.