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Finding the Fourth Proportional to 12,757.44, 19,133.28 and 4,549.44

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Solution

The fourth proportional to 12,757.44, 19,133.28 and 4,549.44 is: 6,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.44 : 19,133.28 = 4,549.44 : x
  2. Step 2: Convert to fraction form
    12,757.44/19,133.28 = 4,549.44/x
  3. Step 3: Cross multiply
    12,757.44x = 19,133.28 × 4,549.44
  4. Step 4: Simplify right side
    12,757.44x = 87,045,709.36
  5. Step 5: Solve for x
    x = 87,045,709.36/12,757.44
  6. Step 6: Final answer
    x = 6,823.13

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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.