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Finding the Fourth Proportional to 66,364.68, 99,480.78 and 36,795.72

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Solution

The fourth proportional to 66,364.68, 99,480.78 and 36,795.72 is: 55,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.68 : 99,480.78 = 36,795.72 : x
  2. Step 2: Convert to fraction form
    66,364.68/99,480.78 = 36,795.72/x
  3. Step 3: Cross multiply
    66,364.68x = 99,480.78 × 36,795.72
  4. Step 4: Simplify right side
    66,364.68x = 3,660,466,926.26
  5. Step 5: Solve for x
    x = 3,660,466,926.26/66,364.68
  6. Step 6: Final answer
    x = 55,156.85

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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.