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Finding the Fourth Proportional to 66,811.80, 92,196.72 and 36,595.56

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Solution

The fourth proportional to 66,811.80, 92,196.72 and 36,595.56 is: 50,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.80 : 92,196.72 = 36,595.56 : x
  2. Step 2: Convert to fraction form
    66,811.80/92,196.72 = 36,595.56/x
  3. Step 3: Cross multiply
    66,811.80x = 92,196.72 × 36,595.56
  4. Step 4: Simplify right side
    66,811.80x = 3,373,990,598.56
  5. Step 5: Solve for x
    x = 3,373,990,598.56/66,811.80
  6. Step 6: Final answer
    x = 50,499.92

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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.