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Finding the Third Proportional to 711 and 970.88

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Solution

The third proportional to 711 and 970.88 is: 1,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    711 : 970.88 = 970.88 : x
  2. Step 2: Convert to fraction form
    711/970.88 = 970.88/x
  3. Step 3: Cross multiply
    711x = 970.88 × 970.88
  4. Step 4: Simplify right side
    711x = 942,598.27
  5. Step 5: Solve for x
    x = 942,598.27/711
  6. Step 6: Final answer
    x = 1,325.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.