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Finding the Fourth Proportional to 18,553, 25,603.20 and 10,055.26

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Solution

The fourth proportional to 18,553, 25,603.20 and 10,055.26 is: 13,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553 : 25,603.20 = 10,055.26 : x
  2. Step 2: Convert to fraction form
    18,553/25,603.20 = 10,055.26/x
  3. Step 3: Cross multiply
    18,553x = 25,603.20 × 10,055.26
  4. Step 4: Simplify right side
    18,553x = 257,446,832.83
  5. Step 5: Solve for x
    x = 257,446,832.83/18,553
  6. Step 6: Final answer
    x = 13,876.29

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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.