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Finding the Fourth Proportional to 15,008.25, 22,512.69 and 4,620

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Solution

The fourth proportional to 15,008.25, 22,512.69 and 4,620 is: 6,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.25 : 22,512.69 = 4,620 : x
  2. Step 2: Convert to fraction form
    15,008.25/22,512.69 = 4,620/x
  3. Step 3: Cross multiply
    15,008.25x = 22,512.69 × 4,620
  4. Step 4: Simplify right side
    15,008.25x = 104,008,627.80
  5. Step 5: Solve for x
    x = 104,008,627.80/15,008.25
  6. Step 6: Final answer
    x = 6,930.10

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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.