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Finding the Fourth Proportional to 4,693.78, 6,474.81 and 3,015.43

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Solution

The fourth proportional to 4,693.78, 6,474.81 and 3,015.43 is: 4,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,693.78 : 6,474.81 = 3,015.43 : x
  2. Step 2: Convert to fraction form
    4,693.78/6,474.81 = 3,015.43/x
  3. Step 3: Cross multiply
    4,693.78x = 6,474.81 × 3,015.43
  4. Step 4: Simplify right side
    4,693.78x = 19,524,320.13
  5. Step 5: Solve for x
    x = 19,524,320.13/4,693.78
  6. Step 6: Final answer
    x = 4,159.62

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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.