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Finding the Fourth Proportional to 15,550.52, 21,460 and 8,476.96

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Solution

The fourth proportional to 15,550.52, 21,460 and 8,476.96 is: 11,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.52 : 21,460 = 8,476.96 : x
  2. Step 2: Convert to fraction form
    15,550.52/21,460 = 8,476.96/x
  3. Step 3: Cross multiply
    15,550.52x = 21,460 × 8,476.96
  4. Step 4: Simplify right side
    15,550.52x = 181,915,561.60
  5. Step 5: Solve for x
    x = 181,915,561.60/15,550.52
  6. Step 6: Final answer
    x = 11,698.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.