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Finding the Fourth Proportional to 17,427.97, 26,142.95 and 4,947.01

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Solution

The fourth proportional to 17,427.97, 26,142.95 and 4,947.01 is: 7,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,427.97 : 26,142.95 = 4,947.01 : x
  2. Step 2: Convert to fraction form
    17,427.97/26,142.95 = 4,947.01/x
  3. Step 3: Cross multiply
    17,427.97x = 26,142.95 × 4,947.01
  4. Step 4: Simplify right side
    17,427.97x = 129,329,435.08
  5. Step 5: Solve for x
    x = 129,329,435.08/17,427.97
  6. Step 6: Final answer
    x = 7,420.80

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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.