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Finding the Fourth Proportional to 9,661.79, 14,493.07 and 2,998.99

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Solution

The fourth proportional to 9,661.79, 14,493.07 and 2,998.99 is: 4,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.79 : 14,493.07 = 2,998.99 : x
  2. Step 2: Convert to fraction form
    9,661.79/14,493.07 = 2,998.99/x
  3. Step 3: Cross multiply
    9,661.79x = 14,493.07 × 2,998.99
  4. Step 4: Simplify right side
    9,661.79x = 43,464,530.61
  5. Step 5: Solve for x
    x = 43,464,530.61/9,661.79
  6. Step 6: Final answer
    x = 4,498.60

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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.