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Finding the Fourth Proportional to 25,430.08, 35,093.44 and 15,494.08

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Solution

The fourth proportional to 25,430.08, 35,093.44 and 15,494.08 is: 21,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.08 : 35,093.44 = 15,494.08 : x
  2. Step 2: Convert to fraction form
    25,430.08/35,093.44 = 15,494.08/x
  3. Step 3: Cross multiply
    25,430.08x = 35,093.44 × 15,494.08
  4. Step 4: Simplify right side
    25,430.08x = 543,740,566.84
  5. Step 5: Solve for x
    x = 543,740,566.84/25,430.08
  6. Step 6: Final answer
    x = 21,381.79

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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.