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Finding the Fourth Proportional to 5,658.84, 8,488.20 and 2,372.40

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Solution

The fourth proportional to 5,658.84, 8,488.20 and 2,372.40 is: 3,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.84 : 8,488.20 = 2,372.40 : x
  2. Step 2: Convert to fraction form
    5,658.84/8,488.20 = 2,372.40/x
  3. Step 3: Cross multiply
    5,658.84x = 8,488.20 × 2,372.40
  4. Step 4: Simplify right side
    5,658.84x = 20,137,405.68
  5. Step 5: Solve for x
    x = 20,137,405.68/5,658.84
  6. Step 6: Final answer
    x = 3,558.57

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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.