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Finding the Fourth Proportional to 69,648.86, 95,896.91 and 61,464.02

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Solution

The fourth proportional to 69,648.86, 95,896.91 and 61,464.02 is: 84,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,648.86 : 95,896.91 = 61,464.02 : x
  2. Step 2: Convert to fraction form
    69,648.86/95,896.91 = 61,464.02/x
  3. Step 3: Cross multiply
    69,648.86x = 95,896.91 × 61,464.02
  4. Step 4: Simplify right side
    69,648.86x = 5,894,209,268.35
  5. Step 5: Solve for x
    x = 5,894,209,268.35/69,648.86
  6. Step 6: Final answer
    x = 84,627.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.