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Finding the Fourth Proportional to 62,173.44, 85,743.36 and 39,813.12

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Solution

The fourth proportional to 62,173.44, 85,743.36 and 39,813.12 is: 54,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,173.44 : 85,743.36 = 39,813.12 : x
  2. Step 2: Convert to fraction form
    62,173.44/85,743.36 = 39,813.12/x
  3. Step 3: Cross multiply
    62,173.44x = 85,743.36 × 39,813.12
  4. Step 4: Simplify right side
    62,173.44x = 3,413,710,680.88
  5. Step 5: Solve for x
    x = 3,413,710,680.88/62,173.44
  6. Step 6: Final answer
    x = 54,906.25

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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.