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Finding the Fourth Proportional to 9,355.79, 14,050.37 and 8,979.48

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Solution

The fourth proportional to 9,355.79, 14,050.37 and 8,979.48 is: 13,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.79 : 14,050.37 = 8,979.48 : x
  2. Step 2: Convert to fraction form
    9,355.79/14,050.37 = 8,979.48/x
  3. Step 3: Cross multiply
    9,355.79x = 14,050.37 × 8,979.48
  4. Step 4: Simplify right side
    9,355.79x = 126,165,038.86
  5. Step 5: Solve for x
    x = 126,165,038.86/9,355.79
  6. Step 6: Final answer
    x = 13,485.23

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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.