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Finding the Fourth Proportional to 18,593.30, 27,911.55 and 11,206.10

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Solution

The fourth proportional to 18,593.30, 27,911.55 and 11,206.10 is: 16,822.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.30 : 27,911.55 = 11,206.10 : x
  2. Step 2: Convert to fraction form
    18,593.30/27,911.55 = 11,206.10/x
  3. Step 3: Cross multiply
    18,593.30x = 27,911.55 × 11,206.10
  4. Step 4: Simplify right side
    18,593.30x = 312,779,620.46
  5. Step 5: Solve for x
    x = 312,779,620.46/18,593.30
  6. Step 6: Final answer
    x = 16,822.17

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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.