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Finding the Third Proportional to 9,782 and 14,358

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Solution

The third proportional to 9,782 and 14,358 is: 21,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782 : 14,358 = 14,358 : x
  2. Step 2: Convert to fraction form
    9,782/14,358 = 14,358/x
  3. Step 3: Cross multiply
    9,782x = 14,358 × 14,358
  4. Step 4: Simplify right side
    9,782x = 206,152,164
  5. Step 5: Solve for x
    x = 206,152,164/9,782
  6. Step 6: Final answer
    x = 21,074.64

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.