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Finding the Fourth Proportional to 18,588.68, 25,651.42 and 11,035.32

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Solution

The fourth proportional to 18,588.68, 25,651.42 and 11,035.32 is: 15,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.68 : 25,651.42 = 11,035.32 : x
  2. Step 2: Convert to fraction form
    18,588.68/25,651.42 = 11,035.32/x
  3. Step 3: Cross multiply
    18,588.68x = 25,651.42 × 11,035.32
  4. Step 4: Simplify right side
    18,588.68x = 283,071,628.15
  5. Step 5: Solve for x
    x = 283,071,628.15/18,588.68
  6. Step 6: Final answer
    x = 15,228.17

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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.