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Finding the Fourth Proportional to 19,487.50, 26,892.76 and 11,104

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Solution

The fourth proportional to 19,487.50, 26,892.76 and 11,104 is: 15,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.50 : 26,892.76 = 11,104 : x
  2. Step 2: Convert to fraction form
    19,487.50/26,892.76 = 11,104/x
  3. Step 3: Cross multiply
    19,487.50x = 26,892.76 × 11,104
  4. Step 4: Simplify right side
    19,487.50x = 298,617,207.04
  5. Step 5: Solve for x
    x = 298,617,207.04/19,487.50
  6. Step 6: Final answer
    x = 15,323.53

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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.