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Finding the Fourth Proportional to 18,103.18, 27,125.21 and 17,411.24

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Solution

The fourth proportional to 18,103.18, 27,125.21 and 17,411.24 is: 26,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.18 : 27,125.21 = 17,411.24 : x
  2. Step 2: Convert to fraction form
    18,103.18/27,125.21 = 17,411.24/x
  3. Step 3: Cross multiply
    18,103.18x = 27,125.21 × 17,411.24
  4. Step 4: Simplify right side
    18,103.18x = 472,283,541.36
  5. Step 5: Solve for x
    x = 472,283,541.36/18,103.18
  6. Step 6: Final answer
    x = 26,088.43

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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.