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Finding the Fourth Proportional to 60,491.79, 90,658.85 and 30,884.67

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Solution

The fourth proportional to 60,491.79, 90,658.85 and 30,884.67 is: 46,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.79 : 90,658.85 = 30,884.67 : x
  2. Step 2: Convert to fraction form
    60,491.79/90,658.85 = 30,884.67/x
  3. Step 3: Cross multiply
    60,491.79x = 90,658.85 × 30,884.67
  4. Step 4: Simplify right side
    60,491.79x = 2,799,968,510.41
  5. Step 5: Solve for x
    x = 2,799,968,510.41/60,491.79
  6. Step 6: Final answer
    x = 46,286.75

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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.