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Finding the Fourth Proportional to 5,274.14, 7,911.14 and 1,576.40

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Solution

The fourth proportional to 5,274.14, 7,911.14 and 1,576.40 is: 2,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.14 : 7,911.14 = 1,576.40 : x
  2. Step 2: Convert to fraction form
    5,274.14/7,911.14 = 1,576.40/x
  3. Step 3: Cross multiply
    5,274.14x = 7,911.14 × 1,576.40
  4. Step 4: Simplify right side
    5,274.14x = 12,471,121.10
  5. Step 5: Solve for x
    x = 12,471,121.10/5,274.14
  6. Step 6: Final answer
    x = 2,364.58

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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.