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Finding the Fourth Proportional to 17,502.50, 26,253.76 and 5,190.50

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Solution

The fourth proportional to 17,502.50, 26,253.76 and 5,190.50 is: 7,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,502.50 : 26,253.76 = 5,190.50 : x
  2. Step 2: Convert to fraction form
    17,502.50/26,253.76 = 5,190.50/x
  3. Step 3: Cross multiply
    17,502.50x = 26,253.76 × 5,190.50
  4. Step 4: Simplify right side
    17,502.50x = 136,270,141.28
  5. Step 5: Solve for x
    x = 136,270,141.28/17,502.50
  6. Step 6: Final answer
    x = 7,785.75

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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.