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Finding the Third Proportional to 15,585 and 33,090

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Solution

The third proportional to 15,585 and 33,090 is: 70,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585 : 33,090 = 33,090 : x
  2. Step 2: Convert to fraction form
    15,585/33,090 = 33,090/x
  3. Step 3: Cross multiply
    15,585x = 33,090 × 33,090
  4. Step 4: Simplify right side
    15,585x = 1,094,948,100
  5. Step 5: Solve for x
    x = 1,094,948,100/15,585
  6. Step 6: Final answer
    x = 70,256.54

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.