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Finding the Fourth Proportional to 62,778.73, 94,182.90 and 20,662.12

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Solution

The fourth proportional to 62,778.73, 94,182.90 and 20,662.12 is: 30,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,778.73 : 94,182.90 = 20,662.12 : x
  2. Step 2: Convert to fraction form
    62,778.73/94,182.90 = 20,662.12/x
  3. Step 3: Cross multiply
    62,778.73x = 94,182.90 × 20,662.12
  4. Step 4: Simplify right side
    62,778.73x = 1,946,017,807.52
  5. Step 5: Solve for x
    x = 1,946,017,807.52/62,778.73
  6. Step 6: Final answer
    x = 30,998.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.