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Finding the Third Proportional to 15,120 and 32,916.75

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Solution

The third proportional to 15,120 and 32,916.75 is: 71,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120 : 32,916.75 = 32,916.75 : x
  2. Step 2: Convert to fraction form
    15,120/32,916.75 = 32,916.75/x
  3. Step 3: Cross multiply
    15,120x = 32,916.75 × 32,916.75
  4. Step 4: Simplify right side
    15,120x = 1,083,512,430.56
  5. Step 5: Solve for x
    x = 1,083,512,430.56/15,120
  6. Step 6: Final answer
    x = 71,660.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.