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Finding the Fourth Proportional to 70,846.25, 97,766.34 and 39,015.41

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Solution

The fourth proportional to 70,846.25, 97,766.34 and 39,015.41 is: 53,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,846.25 : 97,766.34 = 39,015.41 : x
  2. Step 2: Convert to fraction form
    70,846.25/97,766.34 = 39,015.41/x
  3. Step 3: Cross multiply
    70,846.25x = 97,766.34 × 39,015.41
  4. Step 4: Simplify right side
    70,846.25x = 3,814,393,839.30
  5. Step 5: Solve for x
    x = 3,814,393,839.30/70,846.25
  6. Step 6: Final answer
    x = 53,840.45

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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.