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Finding the Fourth Proportional to 66,007.36, 99,016.86 and 18,622.86

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Solution

The fourth proportional to 66,007.36, 99,016.86 and 18,622.86 is: 27,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.36 : 99,016.86 = 18,622.86 : x
  2. Step 2: Convert to fraction form
    66,007.36/99,016.86 = 18,622.86/x
  3. Step 3: Cross multiply
    66,007.36x = 99,016.86 × 18,622.86
  4. Step 4: Simplify right side
    66,007.36x = 1,843,977,219.78
  5. Step 5: Solve for x
    x = 1,843,977,219.78/66,007.36
  6. Step 6: Final answer
    x = 27,935.94

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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.