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Finding the Fourth Proportional to 66,164.78, 91,307.76 and 35,950.34

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Solution

The fourth proportional to 66,164.78, 91,307.76 and 35,950.34 is: 49,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.78 : 91,307.76 = 35,950.34 : x
  2. Step 2: Convert to fraction form
    66,164.78/91,307.76 = 35,950.34/x
  3. Step 3: Cross multiply
    66,164.78x = 91,307.76 × 35,950.34
  4. Step 4: Simplify right side
    66,164.78x = 3,282,544,560.10
  5. Step 5: Solve for x
    x = 3,282,544,560.10/66,164.78
  6. Step 6: Final answer
    x = 49,611.66

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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.