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Finding the Fourth Proportional to 70,241.72, 96,932.64 and 40,028.84

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Solution

The fourth proportional to 70,241.72, 96,932.64 and 40,028.84 is: 55,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,241.72 : 96,932.64 = 40,028.84 : x
  2. Step 2: Convert to fraction form
    70,241.72/96,932.64 = 40,028.84/x
  3. Step 3: Cross multiply
    70,241.72x = 96,932.64 × 40,028.84
  4. Step 4: Simplify right side
    70,241.72x = 3,880,101,137.34
  5. Step 5: Solve for x
    x = 3,880,101,137.34/70,241.72
  6. Step 6: Final answer
    x = 55,239.27

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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.