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Finding the Fourth Proportional to 9,930.41, 14,872.93 and 4,739.93

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Solution

The fourth proportional to 9,930.41, 14,872.93 and 4,739.93 is: 7,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.41 : 14,872.93 = 4,739.93 : x
  2. Step 2: Convert to fraction form
    9,930.41/14,872.93 = 4,739.93/x
  3. Step 3: Cross multiply
    9,930.41x = 14,872.93 × 4,739.93
  4. Step 4: Simplify right side
    9,930.41x = 70,496,684.28
  5. Step 5: Solve for x
    x = 70,496,684.28/9,930.41
  6. Step 6: Final answer
    x = 7,099.07

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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.