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Finding the Third Proportional to 585 and 897.75

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Solution

The third proportional to 585 and 897.75 is: 1,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585 : 897.75 = 897.75 : x
  2. Step 2: Convert to fraction form
    585/897.75 = 897.75/x
  3. Step 3: Cross multiply
    585x = 897.75 × 897.75
  4. Step 4: Simplify right side
    585x = 805,955.06
  5. Step 5: Solve for x
    x = 805,955.06/585
  6. Step 6: Final answer
    x = 1,377.70

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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.