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Finding the Fourth Proportional to 11,691.88, 16,101.99 and 10,941.45

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Solution

The fourth proportional to 11,691.88, 16,101.99 and 10,941.45 is: 15,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.88 : 16,101.99 = 10,941.45 : x
  2. Step 2: Convert to fraction form
    11,691.88/16,101.99 = 10,941.45/x
  3. Step 3: Cross multiply
    11,691.88x = 16,101.99 × 10,941.45
  4. Step 4: Simplify right side
    11,691.88x = 176,179,058.10
  5. Step 5: Solve for x
    x = 176,179,058.10/11,691.88
  6. Step 6: Final answer
    x = 15,068.50

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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.