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Finding the Third Proportional to 912 and 1,854

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Solution

The third proportional to 912 and 1,854 is: 3,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    912 : 1,854 = 1,854 : x
  2. Step 2: Convert to fraction form
    912/1,854 = 1,854/x
  3. Step 3: Cross multiply
    912x = 1,854 × 1,854
  4. Step 4: Simplify right side
    912x = 3,437,316
  5. Step 5: Solve for x
    x = 3,437,316/912
  6. Step 6: Final answer
    x = 3,768.99

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.