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Finding the Fourth Proportional to 3,472.48, 5,208.58 and 875.44

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Solution

The fourth proportional to 3,472.48, 5,208.58 and 875.44 is: 1,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.48 : 5,208.58 = 875.44 : x
  2. Step 2: Convert to fraction form
    3,472.48/5,208.58 = 875.44/x
  3. Step 3: Cross multiply
    3,472.48x = 5,208.58 × 875.44
  4. Step 4: Simplify right side
    3,472.48x = 4,559,799.28
  5. Step 5: Solve for x
    x = 4,559,799.28/3,472.48
  6. Step 6: Final answer
    x = 1,313.12

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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.