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Finding the Fourth Proportional to 7,963.08, 10,993.86 and 5,276.58

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Solution

The fourth proportional to 7,963.08, 10,993.86 and 5,276.58 is: 7,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.08 : 10,993.86 = 5,276.58 : x
  2. Step 2: Convert to fraction form
    7,963.08/10,993.86 = 5,276.58/x
  3. Step 3: Cross multiply
    7,963.08x = 10,993.86 × 5,276.58
  4. Step 4: Simplify right side
    7,963.08x = 58,009,981.80
  5. Step 5: Solve for x
    x = 58,009,981.80/7,963.08
  6. Step 6: Final answer
    x = 7,284.87

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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.