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Finding the Third Proportional to 972 and 2,237.63

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Solution

The third proportional to 972 and 2,237.63 is: 5,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    972 : 2,237.63 = 2,237.63 : x
  2. Step 2: Convert to fraction form
    972/2,237.63 = 2,237.63/x
  3. Step 3: Cross multiply
    972x = 2,237.63 × 2,237.63
  4. Step 4: Simplify right side
    972x = 5,006,965.64
  5. Step 5: Solve for x
    x = 5,006,965.64/972
  6. Step 6: Final answer
    x = 5,151.20

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.