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Finding the Fourth Proportional to 10,167.99, 15,252 and 2,772.45

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Solution

The fourth proportional to 10,167.99, 15,252 and 2,772.45 is: 4,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,167.99 : 15,252 = 2,772.45 : x
  2. Step 2: Convert to fraction form
    10,167.99/15,252 = 2,772.45/x
  3. Step 3: Cross multiply
    10,167.99x = 15,252 × 2,772.45
  4. Step 4: Simplify right side
    10,167.99x = 42,285,407.40
  5. Step 5: Solve for x
    x = 42,285,407.40/10,167.99
  6. Step 6: Final answer
    x = 4,158.68

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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.