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Finding the Fourth Proportional to 66,807.87, 100,208.30 and 22,435.53

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Solution

The fourth proportional to 66,807.87, 100,208.30 and 22,435.53 is: 33,652.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,807.87 : 100,208.30 = 22,435.53 : x
  2. Step 2: Convert to fraction form
    66,807.87/100,208.30 = 22,435.53/x
  3. Step 3: Cross multiply
    66,807.87x = 100,208.30 × 22,435.53
  4. Step 4: Simplify right side
    66,807.87x = 2,248,226,208.72
  5. Step 5: Solve for x
    x = 2,248,226,208.72/66,807.87
  6. Step 6: Final answer
    x = 33,652.12

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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.