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Finding the Fourth Proportional to 11,229.90, 16,848.90 and 4,658.10

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Solution

The fourth proportional to 11,229.90, 16,848.90 and 4,658.10 is: 6,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.90 : 16,848.90 = 4,658.10 : x
  2. Step 2: Convert to fraction form
    11,229.90/16,848.90 = 4,658.10/x
  3. Step 3: Cross multiply
    11,229.90x = 16,848.90 × 4,658.10
  4. Step 4: Simplify right side
    11,229.90x = 78,483,861.09
  5. Step 5: Solve for x
    x = 78,483,861.09/11,229.90
  6. Step 6: Final answer
    x = 6,988.83

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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.