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Finding the Fourth Proportional to 21,798.75, 32,698.43 and 6,216.38

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Solution

The fourth proportional to 21,798.75, 32,698.43 and 6,216.38 is: 9,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.75 : 32,698.43 = 6,216.38 : x
  2. Step 2: Convert to fraction form
    21,798.75/32,698.43 = 6,216.38/x
  3. Step 3: Cross multiply
    21,798.75x = 32,698.43 × 6,216.38
  4. Step 4: Simplify right side
    21,798.75x = 203,265,718.33
  5. Step 5: Solve for x
    x = 203,265,718.33/21,798.75
  6. Step 6: Final answer
    x = 9,324.65

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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.