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Finding the Third Proportional to 28,475.50 and 66,531

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Solution

The third proportional to 28,475.50 and 66,531 is: 155,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.50 : 66,531 = 66,531 : x
  2. Step 2: Convert to fraction form
    28,475.50/66,531 = 66,531/x
  3. Step 3: Cross multiply
    28,475.50x = 66,531 × 66,531
  4. Step 4: Simplify right side
    28,475.50x = 4,426,373,961
  5. Step 5: Solve for x
    x = 4,426,373,961/28,475.50
  6. Step 6: Final answer
    x = 155,445.00

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.