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Finding the Fourth Proportional to 60,654.99, 90,998.97 and 34,378.20

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Solution

The fourth proportional to 60,654.99, 90,998.97 and 34,378.20 is: 51,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,654.99 : 90,998.97 = 34,378.20 : x
  2. Step 2: Convert to fraction form
    60,654.99/90,998.97 = 34,378.20/x
  3. Step 3: Cross multiply
    60,654.99x = 90,998.97 × 34,378.20
  4. Step 4: Simplify right side
    60,654.99x = 3,128,380,790.45
  5. Step 5: Solve for x
    x = 3,128,380,790.45/60,654.99
  6. Step 6: Final answer
    x = 51,576.64

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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.