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Finding the Third Proportional to 7,284.94 and 15,720.75

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Solution

The third proportional to 7,284.94 and 15,720.75 is: 33,925.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.94 : 15,720.75 = 15,720.75 : x
  2. Step 2: Convert to fraction form
    7,284.94/15,720.75 = 15,720.75/x
  3. Step 3: Cross multiply
    7,284.94x = 15,720.75 × 15,720.75
  4. Step 4: Simplify right side
    7,284.94x = 247,141,980.56
  5. Step 5: Solve for x
    x = 247,141,980.56/7,284.94
  6. Step 6: Final answer
    x = 33,925.07

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.