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Finding the Fourth Proportional to 4,921.53, 6,838.73 and 4,859.43

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Solution

The fourth proportional to 4,921.53, 6,838.73 and 4,859.43 is: 6,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.53 : 6,838.73 = 4,859.43 : x
  2. Step 2: Convert to fraction form
    4,921.53/6,838.73 = 4,859.43/x
  3. Step 3: Cross multiply
    4,921.53x = 6,838.73 × 4,859.43
  4. Step 4: Simplify right side
    4,921.53x = 33,232,305.43
  5. Step 5: Solve for x
    x = 33,232,305.43/4,921.53
  6. Step 6: Final answer
    x = 6,752.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.