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Finding the Fourth Proportional to 11,507.80, 17,123.87 and 11,468.92

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Solution

The fourth proportional to 11,507.80, 17,123.87 and 11,468.92 is: 17,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.80 : 17,123.87 = 11,468.92 : x
  2. Step 2: Convert to fraction form
    11,507.80/17,123.87 = 11,468.92/x
  3. Step 3: Cross multiply
    11,507.80x = 17,123.87 × 11,468.92
  4. Step 4: Simplify right side
    11,507.80x = 196,392,295.12
  5. Step 5: Solve for x
    x = 196,392,295.12/11,507.80
  6. Step 6: Final answer
    x = 17,066.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.