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Finding the Third Proportional to 4,711.50 and 8,916.75

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Solution

The third proportional to 4,711.50 and 8,916.75 is: 16,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,711.50 : 8,916.75 = 8,916.75 : x
  2. Step 2: Convert to fraction form
    4,711.50/8,916.75 = 8,916.75/x
  3. Step 3: Cross multiply
    4,711.50x = 8,916.75 × 8,916.75
  4. Step 4: Simplify right side
    4,711.50x = 79,508,430.56
  5. Step 5: Solve for x
    x = 79,508,430.56/4,711.50
  6. Step 6: Final answer
    x = 16,875.40

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.