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Finding the Fourth Proportional to 7,479.67, 10,321.86 and 4,335.79

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Solution

The fourth proportional to 7,479.67, 10,321.86 and 4,335.79 is: 5,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.67 : 10,321.86 = 4,335.79 : x
  2. Step 2: Convert to fraction form
    7,479.67/10,321.86 = 4,335.79/x
  3. Step 3: Cross multiply
    7,479.67x = 10,321.86 × 4,335.79
  4. Step 4: Simplify right side
    7,479.67x = 44,753,417.37
  5. Step 5: Solve for x
    x = 44,753,417.37/7,479.67
  6. Step 6: Final answer
    x = 5,983.34

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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.