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Finding the Fourth Proportional to 11,151.87, 16,730.87 and 9,066.71

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Solution

The fourth proportional to 11,151.87, 16,730.87 and 9,066.71 is: 13,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.87 : 16,730.87 = 9,066.71 : x
  2. Step 2: Convert to fraction form
    11,151.87/16,730.87 = 9,066.71/x
  3. Step 3: Cross multiply
    11,151.87x = 16,730.87 × 9,066.71
  4. Step 4: Simplify right side
    11,151.87x = 151,693,817.35
  5. Step 5: Solve for x
    x = 151,693,817.35/11,151.87
  6. Step 6: Final answer
    x = 13,602.55

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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.