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Finding the Fourth Proportional to 8,483.91, 12,721.75 and 3,803.73

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Solution

The fourth proportional to 8,483.91, 12,721.75 and 3,803.73 is: 5,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.91 : 12,721.75 = 3,803.73 : x
  2. Step 2: Convert to fraction form
    8,483.91/12,721.75 = 3,803.73/x
  3. Step 3: Cross multiply
    8,483.91x = 12,721.75 × 3,803.73
  4. Step 4: Simplify right side
    8,483.91x = 48,390,102.13
  5. Step 5: Solve for x
    x = 48,390,102.13/8,483.91
  6. Step 6: Final answer
    x = 5,703.75

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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.