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Finding the Fourth Proportional to 70,709.48, 97,579.06 and 38,880.44

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Solution

The fourth proportional to 70,709.48, 97,579.06 and 38,880.44 is: 53,654.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,709.48 : 97,579.06 = 38,880.44 : x
  2. Step 2: Convert to fraction form
    70,709.48/97,579.06 = 38,880.44/x
  3. Step 3: Cross multiply
    70,709.48x = 97,579.06 × 38,880.44
  4. Step 4: Simplify right side
    70,709.48x = 3,793,916,202.49
  5. Step 5: Solve for x
    x = 3,793,916,202.49/70,709.48
  6. Step 6: Final answer
    x = 53,654.99

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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.