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Finding the Fourth Proportional to 21,371.88, 32,057.94 and 5,789.64

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Solution

The fourth proportional to 21,371.88, 32,057.94 and 5,789.64 is: 8,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.88 : 32,057.94 = 5,789.64 : x
  2. Step 2: Convert to fraction form
    21,371.88/32,057.94 = 5,789.64/x
  3. Step 3: Cross multiply
    21,371.88x = 32,057.94 × 5,789.64
  4. Step 4: Simplify right side
    21,371.88x = 185,603,931.74
  5. Step 5: Solve for x
    x = 185,603,931.74/21,371.88
  6. Step 6: Final answer
    x = 8,684.49

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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.