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Finding the Fourth Proportional to 70,684.72, 97,544.34 and 38,853.28

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Solution

The fourth proportional to 70,684.72, 97,544.34 and 38,853.28 is: 53,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.72 : 97,544.34 = 38,853.28 : x
  2. Step 2: Convert to fraction form
    70,684.72/97,544.34 = 38,853.28/x
  3. Step 3: Cross multiply
    70,684.72x = 97,544.34 × 38,853.28
  4. Step 4: Simplify right side
    70,684.72x = 3,789,917,554.44
  5. Step 5: Solve for x
    x = 3,789,917,554.44/70,684.72
  6. Step 6: Final answer
    x = 53,617.21

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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.