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Finding the Fourth Proportional to 69,988.74, 104,983.02 and 17,398.23

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Solution

The fourth proportional to 69,988.74, 104,983.02 and 17,398.23 is: 26,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,988.74 : 104,983.02 = 17,398.23 : x
  2. Step 2: Convert to fraction form
    69,988.74/104,983.02 = 17,398.23/x
  3. Step 3: Cross multiply
    69,988.74x = 104,983.02 × 17,398.23
  4. Step 4: Simplify right side
    69,988.74x = 1,826,518,728.05
  5. Step 5: Solve for x
    x = 1,826,518,728.05/69,988.74
  6. Step 6: Final answer
    x = 26,097.32

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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.