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Finding the Third Proportional to 15,960.75 and 25,260.75

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Solution

The third proportional to 15,960.75 and 25,260.75 is: 39,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.75 : 25,260.75 = 25,260.75 : x
  2. Step 2: Convert to fraction form
    15,960.75/25,260.75 = 25,260.75/x
  3. Step 3: Cross multiply
    15,960.75x = 25,260.75 × 25,260.75
  4. Step 4: Simplify right side
    15,960.75x = 638,105,490.56
  5. Step 5: Solve for x
    x = 638,105,490.56/15,960.75
  6. Step 6: Final answer
    x = 39,979.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.