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Finding the Fourth Proportional to 15,625.58, 21,563.85 and 8,552

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Solution

The fourth proportional to 15,625.58, 21,563.85 and 8,552 is: 11,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.58 : 21,563.85 = 8,552 : x
  2. Step 2: Convert to fraction form
    15,625.58/21,563.85 = 8,552/x
  3. Step 3: Cross multiply
    15,625.58x = 21,563.85 × 8,552
  4. Step 4: Simplify right side
    15,625.58x = 184,414,045.20
  5. Step 5: Solve for x
    x = 184,414,045.20/15,625.58
  6. Step 6: Final answer
    x = 11,802.06

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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.