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Finding the Fourth Proportional to 66,865.02, 92,272.47 and 36,649.50

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Solution

The fourth proportional to 66,865.02, 92,272.47 and 36,649.50 is: 50,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,865.02 : 92,272.47 = 36,649.50 : x
  2. Step 2: Convert to fraction form
    66,865.02/92,272.47 = 36,649.50/x
  3. Step 3: Cross multiply
    66,865.02x = 92,272.47 × 36,649.50
  4. Step 4: Simplify right side
    66,865.02x = 3,381,739,889.27
  5. Step 5: Solve for x
    x = 3,381,739,889.27/66,865.02
  6. Step 6: Final answer
    x = 50,575.62

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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.