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Finding the Fourth Proportional to 18,340.64, 27,486.32 and 10,008.16

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Solution

The fourth proportional to 18,340.64, 27,486.32 and 10,008.16 is: 14,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.64 : 27,486.32 = 10,008.16 : x
  2. Step 2: Convert to fraction form
    18,340.64/27,486.32 = 10,008.16/x
  3. Step 3: Cross multiply
    18,340.64x = 27,486.32 × 10,008.16
  4. Step 4: Simplify right side
    18,340.64x = 275,087,488.37
  5. Step 5: Solve for x
    x = 275,087,488.37/18,340.64
  6. Step 6: Final answer
    x = 14,998.79

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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.