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Finding the Fourth Proportional to 15,592, 21,516.96 and 8,518.45

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Solution

The fourth proportional to 15,592, 21,516.96 and 8,518.45 is: 11,755.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592 : 21,516.96 = 8,518.45 : x
  2. Step 2: Convert to fraction form
    15,592/21,516.96 = 8,518.45/x
  3. Step 3: Cross multiply
    15,592x = 21,516.96 × 8,518.45
  4. Step 4: Simplify right side
    15,592x = 183,291,147.91
  5. Step 5: Solve for x
    x = 183,291,147.91/15,592
  6. Step 6: Final answer
    x = 11,755.46

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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.