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Finding the Fourth Proportional to 11,840.99, 17,746.10 and 4,812.82

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Solution

The fourth proportional to 11,840.99, 17,746.10 and 4,812.82 is: 7,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.99 : 17,746.10 = 4,812.82 : x
  2. Step 2: Convert to fraction form
    11,840.99/17,746.10 = 4,812.82/x
  3. Step 3: Cross multiply
    11,840.99x = 17,746.10 × 4,812.82
  4. Step 4: Simplify right side
    11,840.99x = 85,408,853.69
  5. Step 5: Solve for x
    x = 85,408,853.69/11,840.99
  6. Step 6: Final answer
    x = 7,212.98

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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.