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Finding the Fourth Proportional to 17,580.57, 26,370.02 and 6,486.45

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Solution

The fourth proportional to 17,580.57, 26,370.02 and 6,486.45 is: 9,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,580.57 : 26,370.02 = 6,486.45 : x
  2. Step 2: Convert to fraction form
    17,580.57/26,370.02 = 6,486.45/x
  3. Step 3: Cross multiply
    17,580.57x = 26,370.02 × 6,486.45
  4. Step 4: Simplify right side
    17,580.57x = 171,047,783.80
  5. Step 5: Solve for x
    x = 171,047,783.80/17,580.57
  6. Step 6: Final answer
    x = 9,729.37

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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.