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Finding the Fourth Proportional to 70,744.53, 97,625.42 and 38,913.44

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Solution

The fourth proportional to 70,744.53, 97,625.42 and 38,913.44 is: 53,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,744.53 : 97,625.42 = 38,913.44 : x
  2. Step 2: Convert to fraction form
    70,744.53/97,625.42 = 38,913.44/x
  3. Step 3: Cross multiply
    70,744.53x = 97,625.42 × 38,913.44
  4. Step 4: Simplify right side
    70,744.53x = 3,798,940,240.95
  5. Step 5: Solve for x
    x = 3,798,940,240.95/70,744.53
  6. Step 6: Final answer
    x = 53,699.42

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1.5x scale

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.