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Finding the Third Proportional to 48,136.50 and 64,818

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Solution

The third proportional to 48,136.50 and 64,818 is: 87,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,136.50 : 64,818 = 64,818 : x
  2. Step 2: Convert to fraction form
    48,136.50/64,818 = 64,818/x
  3. Step 3: Cross multiply
    48,136.50x = 64,818 × 64,818
  4. Step 4: Simplify right side
    48,136.50x = 4,201,373,124
  5. Step 5: Solve for x
    x = 4,201,373,124/48,136.50
  6. Step 6: Final answer
    x = 87,280.40

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.