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Finding the Fourth Proportional to 5,340.36, 8,011.98 and 4,826.28

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Solution

The fourth proportional to 5,340.36, 8,011.98 and 4,826.28 is: 7,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.36 : 8,011.98 = 4,826.28 : x
  2. Step 2: Convert to fraction form
    5,340.36/8,011.98 = 4,826.28/x
  3. Step 3: Cross multiply
    5,340.36x = 8,011.98 × 4,826.28
  4. Step 4: Simplify right side
    5,340.36x = 38,668,058.83
  5. Step 5: Solve for x
    x = 38,668,058.83/5,340.36
  6. Step 6: Final answer
    x = 7,240.72

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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.