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Finding the Fourth Proportional to 11,807.84, 17,716.26 and 4,415.60

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Solution

The fourth proportional to 11,807.84, 17,716.26 and 4,415.60 is: 6,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.84 : 17,716.26 = 4,415.60 : x
  2. Step 2: Convert to fraction form
    11,807.84/17,716.26 = 4,415.60/x
  3. Step 3: Cross multiply
    11,807.84x = 17,716.26 × 4,415.60
  4. Step 4: Simplify right side
    11,807.84x = 78,227,917.66
  5. Step 5: Solve for x
    x = 78,227,917.66/11,807.84
  6. Step 6: Final answer
    x = 6,625.08

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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.