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Finding the Third Proportional to 790.50 and 942

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Solution

The third proportional to 790.50 and 942 is: 1,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    790.50 : 942 = 942 : x
  2. Step 2: Convert to fraction form
    790.50/942 = 942/x
  3. Step 3: Cross multiply
    790.50x = 942 × 942
  4. Step 4: Simplify right side
    790.50x = 887,364
  5. Step 5: Solve for x
    x = 887,364/790.50
  6. Step 6: Final answer
    x = 1,122.54

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.