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Finding the Third Proportional to 1,981.55 and 4,293.33

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Solution

The third proportional to 1,981.55 and 4,293.33 is: 9,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.55 : 4,293.33 = 4,293.33 : x
  2. Step 2: Convert to fraction form
    1,981.55/4,293.33 = 4,293.33/x
  3. Step 3: Cross multiply
    1,981.55x = 4,293.33 × 4,293.33
  4. Step 4: Simplify right side
    1,981.55x = 18,432,666.39
  5. Step 5: Solve for x
    x = 18,432,666.39/1,981.55
  6. Step 6: Final answer
    x = 9,302.16

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.