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Finding the Fourth Proportional to 5,663.97, 7,816.71 and 3,146.31

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Solution

The fourth proportional to 5,663.97, 7,816.71 and 3,146.31 is: 4,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,663.97 : 7,816.71 = 3,146.31 : x
  2. Step 2: Convert to fraction form
    5,663.97/7,816.71 = 3,146.31/x
  3. Step 3: Cross multiply
    5,663.97x = 7,816.71 × 3,146.31
  4. Step 4: Simplify right side
    5,663.97x = 24,593,792.84
  5. Step 5: Solve for x
    x = 24,593,792.84/5,663.97
  6. Step 6: Final answer
    x = 4,342.15

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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.