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Finding the Fourth Proportional to 61,871.40, 92,807.10 and 36,611.55

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Solution

The fourth proportional to 61,871.40, 92,807.10 and 36,611.55 is: 54,917.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.40 : 92,807.10 = 36,611.55 : x
  2. Step 2: Convert to fraction form
    61,871.40/92,807.10 = 36,611.55/x
  3. Step 3: Cross multiply
    61,871.40x = 92,807.10 × 36,611.55
  4. Step 4: Simplify right side
    61,871.40x = 3,397,811,782.01
  5. Step 5: Solve for x
    x = 3,397,811,782.01/61,871.40
  6. Step 6: Final answer
    x = 54,917.33

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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.