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Finding the Fourth Proportional to 66,620.34, 99,969.84 and 24,529.92

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Solution

The fourth proportional to 66,620.34, 99,969.84 and 24,529.92 is: 36,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.34 : 99,969.84 = 24,529.92 : x
  2. Step 2: Convert to fraction form
    66,620.34/99,969.84 = 24,529.92/x
  3. Step 3: Cross multiply
    66,620.34x = 99,969.84 × 24,529.92
  4. Step 4: Simplify right side
    66,620.34x = 2,452,252,177.61
  5. Step 5: Solve for x
    x = 2,452,252,177.61/66,620.34
  6. Step 6: Final answer
    x = 36,809.36

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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.