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Finding the Fourth Proportional to 69,755.83, 104,661.69 and 25,385.65

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Solution

The fourth proportional to 69,755.83, 104,661.69 and 25,385.65 is: 38,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,755.83 : 104,661.69 = 25,385.65 : x
  2. Step 2: Convert to fraction form
    69,755.83/104,661.69 = 25,385.65/x
  3. Step 3: Cross multiply
    69,755.83x = 104,661.69 × 25,385.65
  4. Step 4: Simplify right side
    69,755.83x = 2,656,905,030.75
  5. Step 5: Solve for x
    x = 2,656,905,030.75/69,755.83
  6. Step 6: Final answer
    x = 38,088.64

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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.