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Finding the Fourth Proportional to 9,670.92, 13,346.13 and 5,479.14

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Solution

The fourth proportional to 9,670.92, 13,346.13 and 5,479.14 is: 7,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.92 : 13,346.13 = 5,479.14 : x
  2. Step 2: Convert to fraction form
    9,670.92/13,346.13 = 5,479.14/x
  3. Step 3: Cross multiply
    9,670.92x = 13,346.13 × 5,479.14
  4. Step 4: Simplify right side
    9,670.92x = 73,125,314.73
  5. Step 5: Solve for x
    x = 73,125,314.73/9,670.92
  6. Step 6: Final answer
    x = 7,561.36

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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.