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Finding the Third Proportional to 743.63 and 1,114.88

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Solution

The third proportional to 743.63 and 1,114.88 is: 1,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.63 : 1,114.88 = 1,114.88 : x
  2. Step 2: Convert to fraction form
    743.63/1,114.88 = 1,114.88/x
  3. Step 3: Cross multiply
    743.63x = 1,114.88 × 1,114.88
  4. Step 4: Simplify right side
    743.63x = 1,242,946.27
  5. Step 5: Solve for x
    x = 1,242,946.27/743.63
  6. Step 6: Final answer
    x = 1,671.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.