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Finding the Fourth Proportional to 11,480.08, 15,832.92 and 7,498.12

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Solution

The fourth proportional to 11,480.08, 15,832.92 and 7,498.12 is: 10,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.08 : 15,832.92 = 7,498.12 : x
  2. Step 2: Convert to fraction form
    11,480.08/15,832.92 = 7,498.12/x
  3. Step 3: Cross multiply
    11,480.08x = 15,832.92 × 7,498.12
  4. Step 4: Simplify right side
    11,480.08x = 118,717,134.11
  5. Step 5: Solve for x
    x = 118,717,134.11/11,480.08
  6. Step 6: Final answer
    x = 10,341.14

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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.