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Finding the Fourth Proportional to 66,393.28, 99,590.01 and 22,008.34

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Solution

The fourth proportional to 66,393.28, 99,590.01 and 22,008.34 is: 33,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393.28 : 99,590.01 = 22,008.34 : x
  2. Step 2: Convert to fraction form
    66,393.28/99,590.01 = 22,008.34/x
  3. Step 3: Cross multiply
    66,393.28x = 99,590.01 × 22,008.34
  4. Step 4: Simplify right side
    66,393.28x = 2,191,810,800.68
  5. Step 5: Solve for x
    x = 2,191,810,800.68/66,393.28
  6. Step 6: Final answer
    x = 33,012.54

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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.