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Finding the Fourth Proportional to 4,782.76, 7,202.11 and 4,173.76

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Solution

The fourth proportional to 4,782.76, 7,202.11 and 4,173.76 is: 6,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.76 : 7,202.11 = 4,173.76 : x
  2. Step 2: Convert to fraction form
    4,782.76/7,202.11 = 4,173.76/x
  3. Step 3: Cross multiply
    4,782.76x = 7,202.11 × 4,173.76
  4. Step 4: Simplify right side
    4,782.76x = 30,059,878.63
  5. Step 5: Solve for x
    x = 30,059,878.63/4,782.76
  6. Step 6: Final answer
    x = 6,285.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.