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Finding the Third Proportional to 27,931.50 and 43,446

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Solution

The third proportional to 27,931.50 and 43,446 is: 67,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.50 : 43,446 = 43,446 : x
  2. Step 2: Convert to fraction form
    27,931.50/43,446 = 43,446/x
  3. Step 3: Cross multiply
    27,931.50x = 43,446 × 43,446
  4. Step 4: Simplify right side
    27,931.50x = 1,887,554,916
  5. Step 5: Solve for x
    x = 1,887,554,916/27,931.50
  6. Step 6: Final answer
    x = 67,578.00

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.