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Finding the Third Proportional to 19,370 and 29,931

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Solution

The third proportional to 19,370 and 29,931 is: 46,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370 : 29,931 = 29,931 : x
  2. Step 2: Convert to fraction form
    19,370/29,931 = 29,931/x
  3. Step 3: Cross multiply
    19,370x = 29,931 × 29,931
  4. Step 4: Simplify right side
    19,370x = 895,864,761
  5. Step 5: Solve for x
    x = 895,864,761/19,370
  6. Step 6: Final answer
    x = 46,250.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.