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Finding the Fourth Proportional to 5,143.22, 7,715.11 and 1,633.50

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Solution

The fourth proportional to 5,143.22, 7,715.11 and 1,633.50 is: 2,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.22 : 7,715.11 = 1,633.50 : x
  2. Step 2: Convert to fraction form
    5,143.22/7,715.11 = 1,633.50/x
  3. Step 3: Cross multiply
    5,143.22x = 7,715.11 × 1,633.50
  4. Step 4: Simplify right side
    5,143.22x = 12,602,632.19
  5. Step 5: Solve for x
    x = 12,602,632.19/5,143.22
  6. Step 6: Final answer
    x = 2,450.34

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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.