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Finding the Third Proportional to 15,391 and 23,878.50

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Solution

The third proportional to 15,391 and 23,878.50 is: 37,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391 : 23,878.50 = 23,878.50 : x
  2. Step 2: Convert to fraction form
    15,391/23,878.50 = 23,878.50/x
  3. Step 3: Cross multiply
    15,391x = 23,878.50 × 23,878.50
  4. Step 4: Simplify right side
    15,391x = 570,182,762.25
  5. Step 5: Solve for x
    x = 570,182,762.25/15,391
  6. Step 6: Final answer
    x = 37,046.51

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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.