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Finding the Fourth Proportional to 9,009.38, 13,508.47 and 3,748.07

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Solution

The fourth proportional to 9,009.38, 13,508.47 and 3,748.07 is: 5,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.38 : 13,508.47 = 3,748.07 : x
  2. Step 2: Convert to fraction form
    9,009.38/13,508.47 = 3,748.07/x
  3. Step 3: Cross multiply
    9,009.38x = 13,508.47 × 3,748.07
  4. Step 4: Simplify right side
    9,009.38x = 50,630,729.61
  5. Step 5: Solve for x
    x = 50,630,729.61/9,009.38
  6. Step 6: Final answer
    x = 5,619.78

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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.