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Finding the Fourth Proportional to 14,326.88, 19,771.09 and 8,039.25

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Solution

The fourth proportional to 14,326.88, 19,771.09 and 8,039.25 is: 11,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.88 : 19,771.09 = 8,039.25 : x
  2. Step 2: Convert to fraction form
    14,326.88/19,771.09 = 8,039.25/x
  3. Step 3: Cross multiply
    14,326.88x = 19,771.09 × 8,039.25
  4. Step 4: Simplify right side
    14,326.88x = 158,944,715.18
  5. Step 5: Solve for x
    x = 158,944,715.18/14,326.88
  6. Step 6: Final answer
    x = 11,094.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.