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Finding the Fourth Proportional to 3,326.91, 4,971.98 and 3,134.87

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Solution

The fourth proportional to 3,326.91, 4,971.98 and 3,134.87 is: 4,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.91 : 4,971.98 = 3,134.87 : x
  2. Step 2: Convert to fraction form
    3,326.91/4,971.98 = 3,134.87/x
  3. Step 3: Cross multiply
    3,326.91x = 4,971.98 × 3,134.87
  4. Step 4: Simplify right side
    3,326.91x = 15,586,510.94
  5. Step 5: Solve for x
    x = 15,586,510.94/3,326.91
  6. Step 6: Final answer
    x = 4,684.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.