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Finding the Fourth Proportional to 62,890.20, 94,408.20 and 37,958.40

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Solution

The fourth proportional to 62,890.20, 94,408.20 and 37,958.40 is: 56,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,890.20 : 94,408.20 = 37,958.40 : x
  2. Step 2: Convert to fraction form
    62,890.20/94,408.20 = 37,958.40/x
  3. Step 3: Cross multiply
    62,890.20x = 94,408.20 × 37,958.40
  4. Step 4: Simplify right side
    62,890.20x = 3,583,584,218.88
  5. Step 5: Solve for x
    x = 3,583,584,218.88/62,890.20
  6. Step 6: Final answer
    x = 56,981.60

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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.