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Finding the Fourth Proportional to 66,871.25, 92,284.70 and 36,656.57

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Solution

The fourth proportional to 66,871.25, 92,284.70 and 36,656.57 is: 50,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,871.25 : 92,284.70 = 36,656.57 : x
  2. Step 2: Convert to fraction form
    66,871.25/92,284.70 = 36,656.57/x
  3. Step 3: Cross multiply
    66,871.25x = 92,284.70 × 36,656.57
  4. Step 4: Simplify right side
    66,871.25x = 3,382,840,565.48
  5. Step 5: Solve for x
    x = 3,382,840,565.48/66,871.25
  6. Step 6: Final answer
    x = 50,587.37

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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.