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Finding the Fourth Proportional to 66,475.10, 99,770.98 and 36,926.30

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Solution

The fourth proportional to 66,475.10, 99,770.98 and 36,926.30 is: 55,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.10 : 99,770.98 = 36,926.30 : x
  2. Step 2: Convert to fraction form
    66,475.10/99,770.98 = 36,926.30/x
  3. Step 3: Cross multiply
    66,475.10x = 99,770.98 × 36,926.30
  4. Step 4: Simplify right side
    66,475.10x = 3,684,173,138.77
  5. Step 5: Solve for x
    x = 3,684,173,138.77/66,475.10
  6. Step 6: Final answer
    x = 55,421.85

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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.