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Finding the Fourth Proportional to 5,366.98, 7,406.85 and 2,977.18

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Solution

The fourth proportional to 5,366.98, 7,406.85 and 2,977.18 is: 4,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.98 : 7,406.85 = 2,977.18 : x
  2. Step 2: Convert to fraction form
    5,366.98/7,406.85 = 2,977.18/x
  3. Step 3: Cross multiply
    5,366.98x = 7,406.85 × 2,977.18
  4. Step 4: Simplify right side
    5,366.98x = 22,051,525.68
  5. Step 5: Solve for x
    x = 22,051,525.68/5,366.98
  6. Step 6: Final answer
    x = 4,108.74

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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.