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Finding the Fourth Proportional to 12,588.49, 18,881.64 and 5,923.40

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Solution

The fourth proportional to 12,588.49, 18,881.64 and 5,923.40 is: 8,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.49 : 18,881.64 = 5,923.40 : x
  2. Step 2: Convert to fraction form
    12,588.49/18,881.64 = 5,923.40/x
  3. Step 3: Cross multiply
    12,588.49x = 18,881.64 × 5,923.40
  4. Step 4: Simplify right side
    12,588.49x = 111,843,553.58
  5. Step 5: Solve for x
    x = 111,843,553.58/12,588.49
  6. Step 6: Final answer
    x = 8,884.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.