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Finding the Third Proportional to 13,312.13 and 18,508.50

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Solution

The third proportional to 13,312.13 and 18,508.50 is: 25,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.13 : 18,508.50 = 18,508.50 : x
  2. Step 2: Convert to fraction form
    13,312.13/18,508.50 = 18,508.50/x
  3. Step 3: Cross multiply
    13,312.13x = 18,508.50 × 18,508.50
  4. Step 4: Simplify right side
    13,312.13x = 342,564,572.25
  5. Step 5: Solve for x
    x = 342,564,572.25/13,312.13
  6. Step 6: Final answer
    x = 25,733.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.