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Finding the Fourth Proportional to 18,833.52, 28,112.70 and 17,463

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Solution

The fourth proportional to 18,833.52, 28,112.70 and 17,463 is: 26,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.52 : 28,112.70 = 17,463 : x
  2. Step 2: Convert to fraction form
    18,833.52/28,112.70 = 17,463/x
  3. Step 3: Cross multiply
    18,833.52x = 28,112.70 × 17,463
  4. Step 4: Simplify right side
    18,833.52x = 490,932,080.10
  5. Step 5: Solve for x
    x = 490,932,080.10/18,833.52
  6. Step 6: Final answer
    x = 26,066.93

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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.