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Finding the Fourth Proportional to 51,187.01, 70,611.09 and 35,243.78

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Solution

The fourth proportional to 51,187.01, 70,611.09 and 35,243.78 is: 48,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.01 : 70,611.09 = 35,243.78 : x
  2. Step 2: Convert to fraction form
    51,187.01/70,611.09 = 35,243.78/x
  3. Step 3: Cross multiply
    51,187.01x = 70,611.09 × 35,243.78
  4. Step 4: Simplify right side
    51,187.01x = 2,488,601,721.52
  5. Step 5: Solve for x
    x = 2,488,601,721.52/51,187.01
  6. Step 6: Final answer
    x = 48,617.84

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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.