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Finding the Fourth Proportional to 66,678.42, 100,057.41 and 23,980.28

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Solution

The fourth proportional to 66,678.42, 100,057.41 and 23,980.28 is: 35,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.42 : 100,057.41 = 23,980.28 : x
  2. Step 2: Convert to fraction form
    66,678.42/100,057.41 = 23,980.28/x
  3. Step 3: Cross multiply
    66,678.42x = 100,057.41 × 23,980.28
  4. Step 4: Simplify right side
    66,678.42x = 2,399,404,207.59
  5. Step 5: Solve for x
    x = 2,399,404,207.59/66,678.42
  6. Step 6: Final answer
    x = 35,984.72

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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.