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Finding the Fourth Proportional to 66,857.21, 92,263.65 and 36,641.86

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Solution

The fourth proportional to 66,857.21, 92,263.65 and 36,641.86 is: 50,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857.21 : 92,263.65 = 36,641.86 : x
  2. Step 2: Convert to fraction form
    66,857.21/92,263.65 = 36,641.86/x
  3. Step 3: Cross multiply
    66,857.21x = 92,263.65 × 36,641.86
  4. Step 4: Simplify right side
    66,857.21x = 3,380,711,746.39
  5. Step 5: Solve for x
    x = 3,380,711,746.39/66,857.21
  6. Step 6: Final answer
    x = 50,566.15

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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.