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Finding the Fourth Proportional to 17,070.92, 23,543.12 and 11,100.40

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Solution

The fourth proportional to 17,070.92, 23,543.12 and 11,100.40 is: 15,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,070.92 : 23,543.12 = 11,100.40 : x
  2. Step 2: Convert to fraction form
    17,070.92/23,543.12 = 11,100.40/x
  3. Step 3: Cross multiply
    17,070.92x = 23,543.12 × 11,100.40
  4. Step 4: Simplify right side
    17,070.92x = 261,338,049.25
  5. Step 5: Solve for x
    x = 261,338,049.25/17,070.92
  6. Step 6: Final answer
    x = 15,308.96

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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.