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Finding the Fourth Proportional to 19,913.44, 27,480.96 and 10,960.96

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Solution

The fourth proportional to 19,913.44, 27,480.96 and 10,960.96 is: 15,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.44 : 27,480.96 = 10,960.96 : x
  2. Step 2: Convert to fraction form
    19,913.44/27,480.96 = 10,960.96/x
  3. Step 3: Cross multiply
    19,913.44x = 27,480.96 × 10,960.96
  4. Step 4: Simplify right side
    19,913.44x = 301,217,703.32
  5. Step 5: Solve for x
    x = 301,217,703.32/19,913.44
  6. Step 6: Final answer
    x = 15,126.35

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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.