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Finding the Fourth Proportional to 25,347.78, 34,978.54 and 14,016.62

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Solution

The fourth proportional to 25,347.78, 34,978.54 and 14,016.62 is: 19,342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,347.78 : 34,978.54 = 14,016.62 : x
  2. Step 2: Convert to fraction form
    25,347.78/34,978.54 = 14,016.62/x
  3. Step 3: Cross multiply
    25,347.78x = 34,978.54 × 14,016.62
  4. Step 4: Simplify right side
    25,347.78x = 490,280,903.33
  5. Step 5: Solve for x
    x = 490,280,903.33/25,347.78
  6. Step 6: Final answer
    x = 19,342.16

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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.