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Finding the Fourth Proportional to 3,472.53, 4,788.77 and 3,218.01

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Solution

The fourth proportional to 3,472.53, 4,788.77 and 3,218.01 is: 4,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.53 : 4,788.77 = 3,218.01 : x
  2. Step 2: Convert to fraction form
    3,472.53/4,788.77 = 3,218.01/x
  3. Step 3: Cross multiply
    3,472.53x = 4,788.77 × 3,218.01
  4. Step 4: Simplify right side
    3,472.53x = 15,410,293.66
  5. Step 5: Solve for x
    x = 15,410,293.66/3,472.53
  6. Step 6: Final answer
    x = 4,437.77

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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.