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Finding the Third Proportional to 7,584 and 8,677.50

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Solution

The third proportional to 7,584 and 8,677.50 is: 9,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,584 : 8,677.50 = 8,677.50 : x
  2. Step 2: Convert to fraction form
    7,584/8,677.50 = 8,677.50/x
  3. Step 3: Cross multiply
    7,584x = 8,677.50 × 8,677.50
  4. Step 4: Simplify right side
    7,584x = 75,299,006.25
  5. Step 5: Solve for x
    x = 75,299,006.25/7,584
  6. Step 6: Final answer
    x = 9,928.67

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.