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Finding the Third Proportional to 28,004 and 43,222

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Solution

The third proportional to 28,004 and 43,222 is: 66,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004 : 43,222 = 43,222 : x
  2. Step 2: Convert to fraction form
    28,004/43,222 = 43,222/x
  3. Step 3: Cross multiply
    28,004x = 43,222 × 43,222
  4. Step 4: Simplify right side
    28,004x = 1,868,141,284
  5. Step 5: Solve for x
    x = 1,868,141,284/28,004
  6. Step 6: Final answer
    x = 66,709.80

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.