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Finding the Fourth Proportional to 21,754.59, 32,629.19 and 6,173.43

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Solution

The fourth proportional to 21,754.59, 32,629.19 and 6,173.43 is: 9,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.59 : 32,629.19 = 6,173.43 : x
  2. Step 2: Convert to fraction form
    21,754.59/32,629.19 = 6,173.43/x
  3. Step 3: Cross multiply
    21,754.59x = 32,629.19 × 6,173.43
  4. Step 4: Simplify right side
    21,754.59x = 201,433,989.55
  5. Step 5: Solve for x
    x = 201,433,989.55/21,754.59
  6. Step 6: Final answer
    x = 9,259.38

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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.