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Finding the Third Proportional to 28,474.50 and 66,528

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Solution

The third proportional to 28,474.50 and 66,528 is: 155,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.50 : 66,528 = 66,528 : x
  2. Step 2: Convert to fraction form
    28,474.50/66,528 = 66,528/x
  3. Step 3: Cross multiply
    28,474.50x = 66,528 × 66,528
  4. Step 4: Simplify right side
    28,474.50x = 4,425,974,784
  5. Step 5: Solve for x
    x = 4,425,974,784/28,474.50
  6. Step 6: Final answer
    x = 155,436.44

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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.