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Finding the Fourth Proportional to 9,879.23, 14,811.11 and 4,946.39

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Solution

The fourth proportional to 9,879.23, 14,811.11 and 4,946.39 is: 7,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.23 : 14,811.11 = 4,946.39 : x
  2. Step 2: Convert to fraction form
    9,879.23/14,811.11 = 4,946.39/x
  3. Step 3: Cross multiply
    9,879.23x = 14,811.11 × 4,946.39
  4. Step 4: Simplify right side
    9,879.23x = 73,261,501.66
  5. Step 5: Solve for x
    x = 73,261,501.66/9,879.23
  6. Step 6: Final answer
    x = 7,415.71

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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.