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Finding the Fourth Proportional to 7,156.16, 10,733.02 and 1,891.23

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Solution

The fourth proportional to 7,156.16, 10,733.02 and 1,891.23 is: 2,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.16 : 10,733.02 = 1,891.23 : x
  2. Step 2: Convert to fraction form
    7,156.16/10,733.02 = 1,891.23/x
  3. Step 3: Cross multiply
    7,156.16x = 10,733.02 × 1,891.23
  4. Step 4: Simplify right side
    7,156.16x = 20,298,564.44
  5. Step 5: Solve for x
    x = 20,298,564.44/7,156.16
  6. Step 6: Final answer
    x = 2,836.52

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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.