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Finding the Fourth Proportional to 19,755, 27,267.27 and 11,261.59

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Solution

The fourth proportional to 19,755, 27,267.27 and 11,261.59 is: 15,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755 : 27,267.27 = 11,261.59 : x
  2. Step 2: Convert to fraction form
    19,755/27,267.27 = 11,261.59/x
  3. Step 3: Cross multiply
    19,755x = 27,267.27 × 11,261.59
  4. Step 4: Simplify right side
    19,755x = 307,072,746.99
  5. Step 5: Solve for x
    x = 307,072,746.99/19,755
  6. Step 6: Final answer
    x = 15,544.05

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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.