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Finding the Fourth Proportional to 66,611.65, 91,924.10 and 35,984.76

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Solution

The fourth proportional to 66,611.65, 91,924.10 and 35,984.76 is: 49,658.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,611.65 : 91,924.10 = 35,984.76 : x
  2. Step 2: Convert to fraction form
    66,611.65/91,924.10 = 35,984.76/x
  3. Step 3: Cross multiply
    66,611.65x = 91,924.10 × 35,984.76
  4. Step 4: Simplify right side
    66,611.65x = 3,307,866,217.10
  5. Step 5: Solve for x
    x = 3,307,866,217.10/66,611.65
  6. Step 6: Final answer
    x = 49,658.97

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1.5x scale

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.