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Finding the Fourth Proportional to 57,633.96, 86,473.98 and 20,700.84

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Solution

The fourth proportional to 57,633.96, 86,473.98 and 20,700.84 is: 31,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,633.96 : 86,473.98 = 20,700.84 : x
  2. Step 2: Convert to fraction form
    57,633.96/86,473.98 = 20,700.84/x
  3. Step 3: Cross multiply
    57,633.96x = 86,473.98 × 20,700.84
  4. Step 4: Simplify right side
    57,633.96x = 1,790,084,024.14
  5. Step 5: Solve for x
    x = 1,790,084,024.14/57,633.96
  6. Step 6: Final answer
    x = 31,059.54

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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.