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Finding the Fourth Proportional to 5,358.72, 7,384.08 and 4,826.64

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Solution

The fourth proportional to 5,358.72, 7,384.08 and 4,826.64 is: 6,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.72 : 7,384.08 = 4,826.64 : x
  2. Step 2: Convert to fraction form
    5,358.72/7,384.08 = 4,826.64/x
  3. Step 3: Cross multiply
    5,358.72x = 7,384.08 × 4,826.64
  4. Step 4: Simplify right side
    5,358.72x = 35,640,295.89
  5. Step 5: Solve for x
    x = 35,640,295.89/5,358.72
  6. Step 6: Final answer
    x = 6,650.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.