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Finding the Fourth Proportional to 60,928.32, 91,400 and 29,740

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Solution

The fourth proportional to 60,928.32, 91,400 and 29,740 is: 44,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,928.32 : 91,400 = 29,740 : x
  2. Step 2: Convert to fraction form
    60,928.32/91,400 = 29,740/x
  3. Step 3: Cross multiply
    60,928.32x = 91,400 × 29,740
  4. Step 4: Simplify right side
    60,928.32x = 2,718,236,000
  5. Step 5: Solve for x
    x = 2,718,236,000/60,928.32
  6. Step 6: Final answer
    x = 44,613.67

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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.