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Finding the Third Proportional to 59,268 and 78,318

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Solution

The third proportional to 59,268 and 78,318 is: 103,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,268 : 78,318 = 78,318 : x
  2. Step 2: Convert to fraction form
    59,268/78,318 = 78,318/x
  3. Step 3: Cross multiply
    59,268x = 78,318 × 78,318
  4. Step 4: Simplify right side
    59,268x = 6,133,709,124
  5. Step 5: Solve for x
    x = 6,133,709,124/59,268
  6. Step 6: Final answer
    x = 103,491.08

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.