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Finding the Third Proportional to 468.75 and 715.13

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Solution

The third proportional to 468.75 and 715.13 is: 1,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.75 : 715.13 = 715.13 : x
  2. Step 2: Convert to fraction form
    468.75/715.13 = 715.13/x
  3. Step 3: Cross multiply
    468.75x = 715.13 × 715.13
  4. Step 4: Simplify right side
    468.75x = 511,403.77
  5. Step 5: Solve for x
    x = 511,403.77/468.75
  6. Step 6: Final answer
    x = 1,090.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.