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Finding the Third Proportional to 15,432.75 and 33,718.50

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Solution

The third proportional to 15,432.75 and 33,718.50 is: 73,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.75 : 33,718.50 = 33,718.50 : x
  2. Step 2: Convert to fraction form
    15,432.75/33,718.50 = 33,718.50/x
  3. Step 3: Cross multiply
    15,432.75x = 33,718.50 × 33,718.50
  4. Step 4: Simplify right side
    15,432.75x = 1,136,937,242.25
  5. Step 5: Solve for x
    x = 1,136,937,242.25/15,432.75
  6. Step 6: Final answer
    x = 73,670.42

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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.