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Finding the Fourth Proportional to 9,879.77, 14,814.19 and 4,040.48

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Solution

The fourth proportional to 9,879.77, 14,814.19 and 4,040.48 is: 6,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.77 : 14,814.19 = 4,040.48 : x
  2. Step 2: Convert to fraction form
    9,879.77/14,814.19 = 4,040.48/x
  3. Step 3: Cross multiply
    9,879.77x = 14,814.19 × 4,040.48
  4. Step 4: Simplify right side
    9,879.77x = 59,856,480.50
  5. Step 5: Solve for x
    x = 59,856,480.50/9,879.77
  6. Step 6: Final answer
    x = 6,058.49

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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.