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Finding the Fourth Proportional to 70,408.86, 105,539.46 and 32,937.36

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Solution

The fourth proportional to 70,408.86, 105,539.46 and 32,937.36 is: 49,371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,408.86 : 105,539.46 = 32,937.36 : x
  2. Step 2: Convert to fraction form
    70,408.86/105,539.46 = 32,937.36/x
  3. Step 3: Cross multiply
    70,408.86x = 105,539.46 × 32,937.36
  4. Step 4: Simplify right side
    70,408.86x = 3,476,191,188.23
  5. Step 5: Solve for x
    x = 3,476,191,188.23/70,408.86
  6. Step 6: Final answer
    x = 49,371.50

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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.