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Finding the Fourth Proportional to 25,065.99, 34,584.98 and 13,887.99

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Solution

The fourth proportional to 25,065.99, 34,584.98 and 13,887.99 is: 19,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,065.99 : 34,584.98 = 13,887.99 : x
  2. Step 2: Convert to fraction form
    25,065.99/34,584.98 = 13,887.99/x
  3. Step 3: Cross multiply
    25,065.99x = 34,584.98 × 13,887.99
  4. Step 4: Simplify right side
    25,065.99x = 480,315,786.95
  5. Step 5: Solve for x
    x = 480,315,786.95/25,065.99
  6. Step 6: Final answer
    x = 19,162.05

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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.