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Finding the Third Proportional to 67,240.13 and 91,368

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Solution

The third proportional to 67,240.13 and 91,368 is: 124,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,240.13 : 91,368 = 91,368 : x
  2. Step 2: Convert to fraction form
    67,240.13/91,368 = 91,368/x
  3. Step 3: Cross multiply
    67,240.13x = 91,368 × 91,368
  4. Step 4: Simplify right side
    67,240.13x = 8,348,111,424
  5. Step 5: Solve for x
    x = 8,348,111,424/67,240.13
  6. Step 6: Final answer
    x = 124,153.72

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.