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Finding the Fourth Proportional to 66,908.42, 100,362.80 and 22,566.32

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Solution

The fourth proportional to 66,908.42, 100,362.80 and 22,566.32 is: 33,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908.42 : 100,362.80 = 22,566.32 : x
  2. Step 2: Convert to fraction form
    66,908.42/100,362.80 = 22,566.32/x
  3. Step 3: Cross multiply
    66,908.42x = 100,362.80 × 22,566.32
  4. Step 4: Simplify right side
    66,908.42x = 2,264,818,446.25
  5. Step 5: Solve for x
    x = 2,264,818,446.25/66,908.42
  6. Step 6: Final answer
    x = 33,849.53

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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.