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Finding the Fourth Proportional to 19,950.88, 29,887.98 and 11,159.14

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Solution

The fourth proportional to 19,950.88, 29,887.98 and 11,159.14 is: 16,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.88 : 29,887.98 = 11,159.14 : x
  2. Step 2: Convert to fraction form
    19,950.88/29,887.98 = 11,159.14/x
  3. Step 3: Cross multiply
    19,950.88x = 29,887.98 × 11,159.14
  4. Step 4: Simplify right side
    19,950.88x = 333,524,153.14
  5. Step 5: Solve for x
    x = 333,524,153.14/19,950.88
  6. Step 6: Final answer
    x = 16,717.27

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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.