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Finding the Fourth Proportional to 4,950.88, 7,421.67 and 1,661.67

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Solution

The fourth proportional to 4,950.88, 7,421.67 and 1,661.67 is: 2,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950.88 : 7,421.67 = 1,661.67 : x
  2. Step 2: Convert to fraction form
    4,950.88/7,421.67 = 1,661.67/x
  3. Step 3: Cross multiply
    4,950.88x = 7,421.67 × 1,661.67
  4. Step 4: Simplify right side
    4,950.88x = 12,332,320.97
  5. Step 5: Solve for x
    x = 12,332,320.97/4,950.88
  6. Step 6: Final answer
    x = 2,490.94

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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.