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Finding the Fourth Proportional to 4,712.80, 7,053.80 and 3,247.52

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Solution

The fourth proportional to 4,712.80, 7,053.80 and 3,247.52 is: 4,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,712.80 : 7,053.80 = 3,247.52 : x
  2. Step 2: Convert to fraction form
    4,712.80/7,053.80 = 3,247.52/x
  3. Step 3: Cross multiply
    4,712.80x = 7,053.80 × 3,247.52
  4. Step 4: Simplify right side
    4,712.80x = 22,907,356.58
  5. Step 5: Solve for x
    x = 22,907,356.58/4,712.80
  6. Step 6: Final answer
    x = 4,860.67

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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.