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Finding the Third Proportional to 7,480 and 18,058

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Solution

The third proportional to 7,480 and 18,058 is: 43,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480 : 18,058 = 18,058 : x
  2. Step 2: Convert to fraction form
    7,480/18,058 = 18,058/x
  3. Step 3: Cross multiply
    7,480x = 18,058 × 18,058
  4. Step 4: Simplify right side
    7,480x = 326,091,364
  5. Step 5: Solve for x
    x = 326,091,364/7,480
  6. Step 6: Final answer
    x = 43,595.10

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.