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Finding the Third Proportional to 426.94 and 931.06

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Solution

The third proportional to 426.94 and 931.06 is: 2,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.94 : 931.06 = 931.06 : x
  2. Step 2: Convert to fraction form
    426.94/931.06 = 931.06/x
  3. Step 3: Cross multiply
    426.94x = 931.06 × 931.06
  4. Step 4: Simplify right side
    426.94x = 866,877.38
  5. Step 5: Solve for x
    x = 866,877.38/426.94
  6. Step 6: Final answer
    x = 2,030.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.