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Finding the Fourth Proportional to 9,918.08, 13,674.50 and 7,260.88

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Solution

The fourth proportional to 9,918.08, 13,674.50 and 7,260.88 is: 10,010.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.08 : 13,674.50 = 7,260.88 : x
  2. Step 2: Convert to fraction form
    9,918.08/13,674.50 = 7,260.88/x
  3. Step 3: Cross multiply
    9,918.08x = 13,674.50 × 7,260.88
  4. Step 4: Simplify right side
    9,918.08x = 99,288,860.30
  5. Step 5: Solve for x
    x = 99,288,860.30/9,918.08
  6. Step 6: Final answer
    x = 10,010.89

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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.