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Finding the Fourth Proportional to 14,475.81, 21,750.03 and 9,213.10

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Solution

The fourth proportional to 14,475.81, 21,750.03 and 9,213.10 is: 13,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.81 : 21,750.03 = 9,213.10 : x
  2. Step 2: Convert to fraction form
    14,475.81/21,750.03 = 9,213.10/x
  3. Step 3: Cross multiply
    14,475.81x = 21,750.03 × 9,213.10
  4. Step 4: Simplify right side
    14,475.81x = 200,385,201.39
  5. Step 5: Solve for x
    x = 200,385,201.39/14,475.81
  6. Step 6: Final answer
    x = 13,842.76

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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.