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Finding the Fourth Proportional to 21,750.98, 32,631.72 and 6,757.64

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Solution

The fourth proportional to 21,750.98, 32,631.72 and 6,757.64 is: 10,138.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.98 : 32,631.72 = 6,757.64 : x
  2. Step 2: Convert to fraction form
    21,750.98/32,631.72 = 6,757.64/x
  3. Step 3: Cross multiply
    21,750.98x = 32,631.72 × 6,757.64
  4. Step 4: Simplify right side
    21,750.98x = 220,513,416.34
  5. Step 5: Solve for x
    x = 220,513,416.34/21,750.98
  6. Step 6: Final answer
    x = 10,138.09

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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.