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Finding the Fourth Proportional to 25,978.01, 35,849.67 and 15,368.36

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Solution

The fourth proportional to 25,978.01, 35,849.67 and 15,368.36 is: 21,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,978.01 : 35,849.67 = 15,368.36 : x
  2. Step 2: Convert to fraction form
    25,978.01/35,849.67 = 15,368.36/x
  3. Step 3: Cross multiply
    25,978.01x = 35,849.67 × 15,368.36
  4. Step 4: Simplify right side
    25,978.01x = 550,950,634.44
  5. Step 5: Solve for x
    x = 550,950,634.44/25,978.01
  6. Step 6: Final answer
    x = 21,208.35

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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.