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Finding the Fourth Proportional to 18,070.87, 27,106.34 and 11,836.10

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Solution

The fourth proportional to 18,070.87, 27,106.34 and 11,836.10 is: 17,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.87 : 27,106.34 = 11,836.10 : x
  2. Step 2: Convert to fraction form
    18,070.87/27,106.34 = 11,836.10/x
  3. Step 3: Cross multiply
    18,070.87x = 27,106.34 × 11,836.10
  4. Step 4: Simplify right side
    18,070.87x = 320,833,350.87
  5. Step 5: Solve for x
    x = 320,833,350.87/18,070.87
  6. Step 6: Final answer
    x = 17,754.17

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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.