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Finding the Fourth Proportional to 57,059.52, 85,600 and 21,996.16

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Solution

The fourth proportional to 57,059.52, 85,600 and 21,996.16 is: 32,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,059.52 : 85,600 = 21,996.16 : x
  2. Step 2: Convert to fraction form
    57,059.52/85,600 = 21,996.16/x
  3. Step 3: Cross multiply
    57,059.52x = 85,600 × 21,996.16
  4. Step 4: Simplify right side
    57,059.52x = 1,882,871,296
  5. Step 5: Solve for x
    x = 1,882,871,296/57,059.52
  6. Step 6: Final answer
    x = 32,998.37

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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.