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Finding the Third Proportional to 15,307.50 and 23,415

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Solution

The third proportional to 15,307.50 and 23,415 is: 35,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.50 : 23,415 = 23,415 : x
  2. Step 2: Convert to fraction form
    15,307.50/23,415 = 23,415/x
  3. Step 3: Cross multiply
    15,307.50x = 23,415 × 23,415
  4. Step 4: Simplify right side
    15,307.50x = 548,262,225
  5. Step 5: Solve for x
    x = 548,262,225/15,307.50
  6. Step 6: Final answer
    x = 35,816.58

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.