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Finding the Fourth Proportional to 10,992.92, 15,169.90 and 6,276.28

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Solution

The fourth proportional to 10,992.92, 15,169.90 and 6,276.28 is: 8,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.92 : 15,169.90 = 6,276.28 : x
  2. Step 2: Convert to fraction form
    10,992.92/15,169.90 = 6,276.28/x
  3. Step 3: Cross multiply
    10,992.92x = 15,169.90 × 6,276.28
  4. Step 4: Simplify right side
    10,992.92x = 95,210,539.97
  5. Step 5: Solve for x
    x = 95,210,539.97/10,992.92
  6. Step 6: Final answer
    x = 8,661.08

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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.