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Finding the Fourth Proportional to 30,942.64, 46,408.08 and 8,750.67

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Solution

The fourth proportional to 30,942.64, 46,408.08 and 8,750.67 is: 13,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.64 : 46,408.08 = 8,750.67 : x
  2. Step 2: Convert to fraction form
    30,942.64/46,408.08 = 8,750.67/x
  3. Step 3: Cross multiply
    30,942.64x = 46,408.08 × 8,750.67
  4. Step 4: Simplify right side
    30,942.64x = 406,101,793.41
  5. Step 5: Solve for x
    x = 406,101,793.41/30,942.64
  6. Step 6: Final answer
    x = 13,124.34

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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.