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Finding the Fourth Proportional to 69,698.46, 96,188.61 and 39,484.02

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Solution

The fourth proportional to 69,698.46, 96,188.61 and 39,484.02 is: 54,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.46 : 96,188.61 = 39,484.02 : x
  2. Step 2: Convert to fraction form
    69,698.46/96,188.61 = 39,484.02/x
  3. Step 3: Cross multiply
    69,698.46x = 96,188.61 × 39,484.02
  4. Step 4: Simplify right side
    69,698.46x = 3,797,913,001.01
  5. Step 5: Solve for x
    x = 3,797,913,001.01/69,698.46
  6. Step 6: Final answer
    x = 54,490.63

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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.