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Finding the Fourth Proportional to 8,592.36, 12,885.30 and 3,658.92

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Solution

The fourth proportional to 8,592.36, 12,885.30 and 3,658.92 is: 5,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.36 : 12,885.30 = 3,658.92 : x
  2. Step 2: Convert to fraction form
    8,592.36/12,885.30 = 3,658.92/x
  3. Step 3: Cross multiply
    8,592.36x = 12,885.30 × 3,658.92
  4. Step 4: Simplify right side
    8,592.36x = 47,146,281.88
  5. Step 5: Solve for x
    x = 47,146,281.88/8,592.36
  6. Step 6: Final answer
    x = 5,487.00

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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.