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Finding the Third Proportional to 10,999.50 and 15,762.75

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Solution

The third proportional to 10,999.50 and 15,762.75 is: 22,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.50 : 15,762.75 = 15,762.75 : x
  2. Step 2: Convert to fraction form
    10,999.50/15,762.75 = 15,762.75/x
  3. Step 3: Cross multiply
    10,999.50x = 15,762.75 × 15,762.75
  4. Step 4: Simplify right side
    10,999.50x = 248,464,287.56
  5. Step 5: Solve for x
    x = 248,464,287.56/10,999.50
  6. Step 6: Final answer
    x = 22,588.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.