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Finding the Fourth Proportional to 7,871.53, 10,863.38 and 4,335.41

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Solution

The fourth proportional to 7,871.53, 10,863.38 and 4,335.41 is: 5,983.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.53 : 10,863.38 = 4,335.41 : x
  2. Step 2: Convert to fraction form
    7,871.53/10,863.38 = 4,335.41/x
  3. Step 3: Cross multiply
    7,871.53x = 10,863.38 × 4,335.41
  4. Step 4: Simplify right side
    7,871.53x = 47,097,206.29
  5. Step 5: Solve for x
    x = 47,097,206.29/7,871.53
  6. Step 6: Final answer
    x = 5,983.23

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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.