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Finding the Fourth Proportional to 70,846.40, 97,768.67 and 39,015.42

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Solution

The fourth proportional to 70,846.40, 97,768.67 and 39,015.42 is: 53,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,846.40 : 97,768.67 = 39,015.42 : x
  2. Step 2: Convert to fraction form
    70,846.40/97,768.67 = 39,015.42/x
  3. Step 3: Cross multiply
    70,846.40x = 97,768.67 × 39,015.42
  4. Step 4: Simplify right side
    70,846.40x = 3,814,485,527.81
  5. Step 5: Solve for x
    x = 3,814,485,527.81/70,846.40
  6. Step 6: Final answer
    x = 53,841.63

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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.