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Finding the Third Proportional to 25,215 and 54,865.50

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Solution

The third proportional to 25,215 and 54,865.50 is: 119,382.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,215 : 54,865.50 = 54,865.50 : x
  2. Step 2: Convert to fraction form
    25,215/54,865.50 = 54,865.50/x
  3. Step 3: Cross multiply
    25,215x = 54,865.50 × 54,865.50
  4. Step 4: Simplify right side
    25,215x = 3,010,223,090.25
  5. Step 5: Solve for x
    x = 3,010,223,090.25/25,215
  6. Step 6: Final answer
    x = 119,382.24

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.