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Finding the Fourth Proportional to 70,546.53, 97,357.01 and 38,716.56

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Solution

The fourth proportional to 70,546.53, 97,357.01 and 38,716.56 is: 53,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,546.53 : 97,357.01 = 38,716.56 : x
  2. Step 2: Convert to fraction form
    70,546.53/97,357.01 = 38,716.56/x
  3. Step 3: Cross multiply
    70,546.53x = 97,357.01 × 38,716.56
  4. Step 4: Simplify right side
    70,546.53x = 3,769,328,519.09
  5. Step 5: Solve for x
    x = 3,769,328,519.09/70,546.53
  6. Step 6: Final answer
    x = 53,430.39

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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.