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Finding the Third Proportional to 933 and 1,428

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Solution

The third proportional to 933 and 1,428 is: 2,185.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    933 : 1,428 = 1,428 : x
  2. Step 2: Convert to fraction form
    933/1,428 = 1,428/x
  3. Step 3: Cross multiply
    933x = 1,428 × 1,428
  4. Step 4: Simplify right side
    933x = 2,039,184
  5. Step 5: Solve for x
    x = 2,039,184/933
  6. Step 6: Final answer
    x = 2,185.62

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.