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Finding the Third Proportional to 806.63 and 1,117.13

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Solution

The third proportional to 806.63 and 1,117.13 is: 1,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.63 : 1,117.13 = 1,117.13 : x
  2. Step 2: Convert to fraction form
    806.63/1,117.13 = 1,117.13/x
  3. Step 3: Cross multiply
    806.63x = 1,117.13 × 1,117.13
  4. Step 4: Simplify right side
    806.63x = 1,247,968.27
  5. Step 5: Solve for x
    x = 1,247,968.27/806.63
  6. Step 6: Final answer
    x = 1,547.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.