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Finding the Fourth Proportional to 18,161.49, 25,058.45 and 10,603.49

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Solution

The fourth proportional to 18,161.49, 25,058.45 and 10,603.49 is: 14,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.49 : 25,058.45 = 10,603.49 : x
  2. Step 2: Convert to fraction form
    18,161.49/25,058.45 = 10,603.49/x
  3. Step 3: Cross multiply
    18,161.49x = 25,058.45 × 10,603.49
  4. Step 4: Simplify right side
    18,161.49x = 265,707,023.99
  5. Step 5: Solve for x
    x = 265,707,023.99/18,161.49
  6. Step 6: Final answer
    x = 14,630.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.