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Finding the Fourth Proportional to 7,054.64, 10,578.96 and 3,156.92

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Solution

The fourth proportional to 7,054.64, 10,578.96 and 3,156.92 is: 4,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.64 : 10,578.96 = 3,156.92 : x
  2. Step 2: Convert to fraction form
    7,054.64/10,578.96 = 3,156.92/x
  3. Step 3: Cross multiply
    7,054.64x = 10,578.96 × 3,156.92
  4. Step 4: Simplify right side
    7,054.64x = 33,396,930.40
  5. Step 5: Solve for x
    x = 33,396,930.40/7,054.64
  6. Step 6: Final answer
    x = 4,734.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.