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Finding the Fourth Proportional to 11,409.70, 17,114.55 and 7,473.10

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Solution

The fourth proportional to 11,409.70, 17,114.55 and 7,473.10 is: 11,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.70 : 17,114.55 = 7,473.10 : x
  2. Step 2: Convert to fraction form
    11,409.70/17,114.55 = 7,473.10/x
  3. Step 3: Cross multiply
    11,409.70x = 17,114.55 × 7,473.10
  4. Step 4: Simplify right side
    11,409.70x = 127,898,743.61
  5. Step 5: Solve for x
    x = 127,898,743.61/11,409.70
  6. Step 6: Final answer
    x = 11,209.65

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Double scale
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Similar ratio
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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.