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Finding the Fourth Proportional to 18,004.96, 26,965.68 and 9,218.08

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Solution

The fourth proportional to 18,004.96, 26,965.68 and 9,218.08 is: 13,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.96 : 26,965.68 = 9,218.08 : x
  2. Step 2: Convert to fraction form
    18,004.96/26,965.68 = 9,218.08/x
  3. Step 3: Cross multiply
    18,004.96x = 26,965.68 × 9,218.08
  4. Step 4: Simplify right side
    18,004.96x = 248,571,795.49
  5. Step 5: Solve for x
    x = 248,571,795.49/18,004.96
  6. Step 6: Final answer
    x = 13,805.74

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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.