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Finding the Third Proportional to 8,646.75 and 12,803.06

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Solution

The third proportional to 8,646.75 and 12,803.06 is: 18,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.75 : 12,803.06 = 12,803.06 : x
  2. Step 2: Convert to fraction form
    8,646.75/12,803.06 = 12,803.06/x
  3. Step 3: Cross multiply
    8,646.75x = 12,803.06 × 12,803.06
  4. Step 4: Simplify right side
    8,646.75x = 163,918,409.38
  5. Step 5: Solve for x
    x = 163,918,409.38/8,646.75
  6. Step 6: Final answer
    x = 18,957.23

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.