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Finding the Fourth Proportional to 3,572.64, 5,347.29 and 3,231.63

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Solution

The fourth proportional to 3,572.64, 5,347.29 and 3,231.63 is: 4,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.64 : 5,347.29 = 3,231.63 : x
  2. Step 2: Convert to fraction form
    3,572.64/5,347.29 = 3,231.63/x
  3. Step 3: Cross multiply
    3,572.64x = 5,347.29 × 3,231.63
  4. Step 4: Simplify right side
    3,572.64x = 17,280,462.78
  5. Step 5: Solve for x
    x = 17,280,462.78/3,572.64
  6. Step 6: Final answer
    x = 4,836.89

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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.