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Finding the Fourth Proportional to 5,574.84, 8,361.52 and 1,679.28

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Solution

The fourth proportional to 5,574.84, 8,361.52 and 1,679.28 is: 2,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.84 : 8,361.52 = 1,679.28 : x
  2. Step 2: Convert to fraction form
    5,574.84/8,361.52 = 1,679.28/x
  3. Step 3: Cross multiply
    5,574.84x = 8,361.52 × 1,679.28
  4. Step 4: Simplify right side
    5,574.84x = 14,041,333.31
  5. Step 5: Solve for x
    x = 14,041,333.31/5,574.84
  6. Step 6: Final answer
    x = 2,518.70

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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.