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Finding the Third Proportional to 47,312 and 103,480

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Solution

The third proportional to 47,312 and 103,480 is: 226,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,312 : 103,480 = 103,480 : x
  2. Step 2: Convert to fraction form
    47,312/103,480 = 103,480/x
  3. Step 3: Cross multiply
    47,312x = 103,480 × 103,480
  4. Step 4: Simplify right side
    47,312x = 10,708,110,400
  5. Step 5: Solve for x
    x = 10,708,110,400/47,312
  6. Step 6: Final answer
    x = 226,329.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.