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Finding the Third Proportional to 28,916.50 and 66,936.50

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Solution

The third proportional to 28,916.50 and 66,936.50 is: 154,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.50 : 66,936.50 = 66,936.50 : x
  2. Step 2: Convert to fraction form
    28,916.50/66,936.50 = 66,936.50/x
  3. Step 3: Cross multiply
    28,916.50x = 66,936.50 × 66,936.50
  4. Step 4: Simplify right side
    28,916.50x = 4,480,495,032.25
  5. Step 5: Solve for x
    x = 4,480,495,032.25/28,916.50
  6. Step 6: Final answer
    x = 154,945.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.