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Finding the Fourth Proportional to 18,588.69, 27,931.41 and 17,373.87

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Solution

The fourth proportional to 18,588.69, 27,931.41 and 17,373.87 is: 26,106.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.69 : 27,931.41 = 17,373.87 : x
  2. Step 2: Convert to fraction form
    18,588.69/27,931.41 = 17,373.87/x
  3. Step 3: Cross multiply
    18,588.69x = 27,931.41 × 17,373.87
  4. Step 4: Simplify right side
    18,588.69x = 485,276,686.26
  5. Step 5: Solve for x
    x = 485,276,686.26/18,588.69
  6. Step 6: Final answer
    x = 26,106.02

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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.