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Finding the Third Proportional to 921,692 and 1,916,959

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Solution

The third proportional to 921,692 and 1,916,959 is: 3,986,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,692 : 1,916,959 = 1,916,959 : x
  2. Step 2: Convert to fraction form
    921,692/1,916,959 = 1,916,959/x
  3. Step 3: Cross multiply
    921,692x = 1,916,959 × 1,916,959
  4. Step 4: Simplify right side
    921,692x = 3,674,731,807,681
  5. Step 5: Solve for x
    x = 3,674,731,807,681/921,692
  6. Step 6: Final answer
    x = 3,986,941.20

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.