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Finding the Fourth Proportional to 12,892.54, 17,791.11 and 7,303.58

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Solution

The fourth proportional to 12,892.54, 17,791.11 and 7,303.58 is: 10,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.54 : 17,791.11 = 7,303.58 : x
  2. Step 2: Convert to fraction form
    12,892.54/17,791.11 = 7,303.58/x
  3. Step 3: Cross multiply
    12,892.54x = 17,791.11 × 7,303.58
  4. Step 4: Simplify right side
    12,892.54x = 129,938,795.17
  5. Step 5: Solve for x
    x = 129,938,795.17/12,892.54
  6. Step 6: Final answer
    x = 10,078.60

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1.5x scale

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.