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Finding the Third Proportional to 535 and 715.50

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Solution

The third proportional to 535 and 715.50 is: 956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535 : 715.50 = 715.50 : x
  2. Step 2: Convert to fraction form
    535/715.50 = 715.50/x
  3. Step 3: Cross multiply
    535x = 715.50 × 715.50
  4. Step 4: Simplify right side
    535x = 511,940.25
  5. Step 5: Solve for x
    x = 511,940.25/535
  6. Step 6: Final answer
    x = 956.90

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.