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Finding the Third Proportional to 51,490 and 75,564.50

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Solution

The third proportional to 51,490 and 75,564.50 is: 110,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490 : 75,564.50 = 75,564.50 : x
  2. Step 2: Convert to fraction form
    51,490/75,564.50 = 75,564.50/x
  3. Step 3: Cross multiply
    51,490x = 75,564.50 × 75,564.50
  4. Step 4: Simplify right side
    51,490x = 5,709,993,660.25
  5. Step 5: Solve for x
    x = 5,709,993,660.25/51,490
  6. Step 6: Final answer
    x = 110,895.20

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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.