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Finding the Fourth Proportional to 66,784.44, 100,174.23 and 20,036.10

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Solution

The fourth proportional to 66,784.44, 100,174.23 and 20,036.10 is: 30,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.44 : 100,174.23 = 20,036.10 : x
  2. Step 2: Convert to fraction form
    66,784.44/100,174.23 = 20,036.10/x
  3. Step 3: Cross multiply
    66,784.44x = 100,174.23 × 20,036.10
  4. Step 4: Simplify right side
    66,784.44x = 2,007,100,889.70
  5. Step 5: Solve for x
    x = 2,007,100,889.70/66,784.44
  6. Step 6: Final answer
    x = 30,053.42

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1.5x scale

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.