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Finding the Fourth Proportional to 69,564.16, 95,848.32 and 47,169.28

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Solution

The fourth proportional to 69,564.16, 95,848.32 and 47,169.28 is: 64,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,564.16 : 95,848.32 = 47,169.28 : x
  2. Step 2: Convert to fraction form
    69,564.16/95,848.32 = 47,169.28/x
  3. Step 3: Cross multiply
    69,564.16x = 95,848.32 × 47,169.28
  4. Step 4: Simplify right side
    69,564.16x = 4,521,096,243.61
  5. Step 5: Solve for x
    x = 4,521,096,243.61/69,564.16
  6. Step 6: Final answer
    x = 64,991.75

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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.