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Finding the Fourth Proportional to 36,408.40, 54,569.40 and 15,348.40

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Solution

The fourth proportional to 36,408.40, 54,569.40 and 15,348.40 is: 23,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,408.40 : 54,569.40 = 15,348.40 : x
  2. Step 2: Convert to fraction form
    36,408.40/54,569.40 = 15,348.40/x
  3. Step 3: Cross multiply
    36,408.40x = 54,569.40 × 15,348.40
  4. Step 4: Simplify right side
    36,408.40x = 837,552,978.96
  5. Step 5: Solve for x
    x = 837,552,978.96/36,408.40
  6. Step 6: Final answer
    x = 23,004.39

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1.5x scale

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.