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Finding the Fourth Proportional to 11,390.74, 17,096.79 and 7,016.74

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Solution

The fourth proportional to 11,390.74, 17,096.79 and 7,016.74 is: 10,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.74 : 17,096.79 = 7,016.74 : x
  2. Step 2: Convert to fraction form
    11,390.74/17,096.79 = 7,016.74/x
  3. Step 3: Cross multiply
    11,390.74x = 17,096.79 × 7,016.74
  4. Step 4: Simplify right side
    11,390.74x = 119,963,730.26
  5. Step 5: Solve for x
    x = 119,963,730.26/11,390.74
  6. Step 6: Final answer
    x = 10,531.69

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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.