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Finding the Fourth Proportional to 53,603.06, 80,408 and 18,061.48

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Solution

The fourth proportional to 53,603.06, 80,408 and 18,061.48 is: 27,093.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,603.06 : 80,408 = 18,061.48 : x
  2. Step 2: Convert to fraction form
    53,603.06/80,408 = 18,061.48/x
  3. Step 3: Cross multiply
    53,603.06x = 80,408 × 18,061.48
  4. Step 4: Simplify right side
    53,603.06x = 1,452,287,483.84
  5. Step 5: Solve for x
    x = 1,452,287,483.84/53,603.06
  6. Step 6: Final answer
    x = 27,093.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.