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Finding the Fourth Proportional to 17,558.88, 26,337.96 and 5,078.40

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Solution

The fourth proportional to 17,558.88, 26,337.96 and 5,078.40 is: 7,617.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,558.88 : 26,337.96 = 5,078.40 : x
  2. Step 2: Convert to fraction form
    17,558.88/26,337.96 = 5,078.40/x
  3. Step 3: Cross multiply
    17,558.88x = 26,337.96 × 5,078.40
  4. Step 4: Simplify right side
    17,558.88x = 133,754,696.06
  5. Step 5: Solve for x
    x = 133,754,696.06/17,558.88
  6. Step 6: Final answer
    x = 7,617.50

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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.