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Finding the Fourth Proportional to 8,724.52, 12,038.52 and 5,367.88

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Solution

The fourth proportional to 8,724.52, 12,038.52 and 5,367.88 is: 7,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.52 : 12,038.52 = 5,367.88 : x
  2. Step 2: Convert to fraction form
    8,724.52/12,038.52 = 5,367.88/x
  3. Step 3: Cross multiply
    8,724.52x = 12,038.52 × 5,367.88
  4. Step 4: Simplify right side
    8,724.52x = 64,621,330.74
  5. Step 5: Solve for x
    x = 64,621,330.74/8,724.52
  6. Step 6: Final answer
    x = 7,406.86

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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.