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Finding the Third Proportional to 15,349.50 and 17,938.13

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Solution

The third proportional to 15,349.50 and 17,938.13 is: 20,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.50 : 17,938.13 = 17,938.13 : x
  2. Step 2: Convert to fraction form
    15,349.50/17,938.13 = 17,938.13/x
  3. Step 3: Cross multiply
    15,349.50x = 17,938.13 × 17,938.13
  4. Step 4: Simplify right side
    15,349.50x = 321,776,328.52
  5. Step 5: Solve for x
    x = 321,776,328.52/15,349.50
  6. Step 6: Final answer
    x = 20,963.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.