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Finding the Third Proportional to 470.63 and 725.25

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Solution

The third proportional to 470.63 and 725.25 is: 1,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.63 : 725.25 = 725.25 : x
  2. Step 2: Convert to fraction form
    470.63/725.25 = 725.25/x
  3. Step 3: Cross multiply
    470.63x = 725.25 × 725.25
  4. Step 4: Simplify right side
    470.63x = 525,987.56
  5. Step 5: Solve for x
    x = 525,987.56/470.63
  6. Step 6: Final answer
    x = 1,117.64

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.