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Finding the Fourth Proportional to 7,338.51, 11,009.13 and 2,408.40

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Solution

The fourth proportional to 7,338.51, 11,009.13 and 2,408.40 is: 3,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.51 : 11,009.13 = 2,408.40 : x
  2. Step 2: Convert to fraction form
    7,338.51/11,009.13 = 2,408.40/x
  3. Step 3: Cross multiply
    7,338.51x = 11,009.13 × 2,408.40
  4. Step 4: Simplify right side
    7,338.51x = 26,514,388.69
  5. Step 5: Solve for x
    x = 26,514,388.69/7,338.51
  6. Step 6: Final answer
    x = 3,613.05

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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.