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Finding the Fourth Proportional to 58,408.54, 80,603.72 and 31,551.04

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Solution

The fourth proportional to 58,408.54, 80,603.72 and 31,551.04 is: 43,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,408.54 : 80,603.72 = 31,551.04 : x
  2. Step 2: Convert to fraction form
    58,408.54/80,603.72 = 31,551.04/x
  3. Step 3: Cross multiply
    58,408.54x = 80,603.72 × 31,551.04
  4. Step 4: Simplify right side
    58,408.54x = 2,543,131,071.24
  5. Step 5: Solve for x
    x = 2,543,131,071.24/58,408.54
  6. Step 6: Final answer
    x = 43,540.40

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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.