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Finding the Third Proportional to 13,437.75 and 15,928.50

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Solution

The third proportional to 13,437.75 and 15,928.50 is: 18,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.75 : 15,928.50 = 15,928.50 : x
  2. Step 2: Convert to fraction form
    13,437.75/15,928.50 = 15,928.50/x
  3. Step 3: Cross multiply
    13,437.75x = 15,928.50 × 15,928.50
  4. Step 4: Simplify right side
    13,437.75x = 253,717,112.25
  5. Step 5: Solve for x
    x = 253,717,112.25/13,437.75
  6. Step 6: Final answer
    x = 18,880.92

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.