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Finding the Third Proportional to 15,888.50 and 34,239.50

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Solution

The third proportional to 15,888.50 and 34,239.50 is: 73,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.50 : 34,239.50 = 34,239.50 : x
  2. Step 2: Convert to fraction form
    15,888.50/34,239.50 = 34,239.50/x
  3. Step 3: Cross multiply
    15,888.50x = 34,239.50 × 34,239.50
  4. Step 4: Simplify right side
    15,888.50x = 1,172,343,360.25
  5. Step 5: Solve for x
    x = 1,172,343,360.25/15,888.50
  6. Step 6: Final answer
    x = 73,785.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.