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Finding the Third Proportional to 9,784.50 and 15,156.75

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Solution

The third proportional to 9,784.50 and 15,156.75 is: 23,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,784.50 : 15,156.75 = 15,156.75 : x
  2. Step 2: Convert to fraction form
    9,784.50/15,156.75 = 15,156.75/x
  3. Step 3: Cross multiply
    9,784.50x = 15,156.75 × 15,156.75
  4. Step 4: Simplify right side
    9,784.50x = 229,727,070.56
  5. Step 5: Solve for x
    x = 229,727,070.56/9,784.50
  6. Step 6: Final answer
    x = 23,478.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.