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Finding the Fourth Proportional to 5,311.98, 7,933.99 and 4,810.91

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Solution

The fourth proportional to 5,311.98, 7,933.99 and 4,810.91 is: 7,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.98 : 7,933.99 = 4,810.91 : x
  2. Step 2: Convert to fraction form
    5,311.98/7,933.99 = 4,810.91/x
  3. Step 3: Cross multiply
    5,311.98x = 7,933.99 × 4,810.91
  4. Step 4: Simplify right side
    5,311.98x = 38,169,711.83
  5. Step 5: Solve for x
    x = 38,169,711.83/5,311.98
  6. Step 6: Final answer
    x = 7,185.59

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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.