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Finding the Fourth Proportional to 62,314.50, 85,969.40 and 38,399.52

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Solution

The fourth proportional to 62,314.50, 85,969.40 and 38,399.52 is: 52,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,314.50 : 85,969.40 = 38,399.52 : x
  2. Step 2: Convert to fraction form
    62,314.50/85,969.40 = 38,399.52/x
  3. Step 3: Cross multiply
    62,314.50x = 85,969.40 × 38,399.52
  4. Step 4: Simplify right side
    62,314.50x = 3,301,183,694.69
  5. Step 5: Solve for x
    x = 3,301,183,694.69/62,314.50
  6. Step 6: Final answer
    x = 52,976.17

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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.