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Finding the Fourth Proportional to 25,021.50, 34,530.75 and 13,843.50

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Solution

The fourth proportional to 25,021.50, 34,530.75 and 13,843.50 is: 19,104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,021.50 : 34,530.75 = 13,843.50 : x
  2. Step 2: Convert to fraction form
    25,021.50/34,530.75 = 13,843.50/x
  3. Step 3: Cross multiply
    25,021.50x = 34,530.75 × 13,843.50
  4. Step 4: Simplify right side
    25,021.50x = 478,026,437.63
  5. Step 5: Solve for x
    x = 478,026,437.63/25,021.50
  6. Step 6: Final answer
    x = 19,104.63

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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.