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Finding the Fourth Proportional to 66,695.96, 100,089.30 and 35,553.08

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Solution

The fourth proportional to 66,695.96, 100,089.30 and 35,553.08 is: 53,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.96 : 100,089.30 = 35,553.08 : x
  2. Step 2: Convert to fraction form
    66,695.96/100,089.30 = 35,553.08/x
  3. Step 3: Cross multiply
    66,695.96x = 100,089.30 × 35,553.08
  4. Step 4: Simplify right side
    66,695.96x = 3,558,482,890.04
  5. Step 5: Solve for x
    x = 3,558,482,890.04/66,695.96
  6. Step 6: Final answer
    x = 53,353.80

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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.