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Finding the Fourth Proportional to 12,368.34, 17,058.96 and 8,591.49

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Solution

The fourth proportional to 12,368.34, 17,058.96 and 8,591.49 is: 11,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.34 : 17,058.96 = 8,591.49 : x
  2. Step 2: Convert to fraction form
    12,368.34/17,058.96 = 8,591.49/x
  3. Step 3: Cross multiply
    12,368.34x = 17,058.96 × 8,591.49
  4. Step 4: Simplify right side
    12,368.34x = 146,561,884.25
  5. Step 5: Solve for x
    x = 146,561,884.25/12,368.34
  6. Step 6: Final answer
    x = 11,849.76

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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.