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Finding the Fourth Proportional to 10,472.79, 14,452.47 and 5,757.09

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Solution

The fourth proportional to 10,472.79, 14,452.47 and 5,757.09 is: 7,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.79 : 14,452.47 = 5,757.09 : x
  2. Step 2: Convert to fraction form
    10,472.79/14,452.47 = 5,757.09/x
  3. Step 3: Cross multiply
    10,472.79x = 14,452.47 × 5,757.09
  4. Step 4: Simplify right side
    10,472.79x = 83,204,170.51
  5. Step 5: Solve for x
    x = 83,204,170.51/10,472.79
  6. Step 6: Final answer
    x = 7,944.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.