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Finding the Fourth Proportional to 25,456.60, 38,201.10 and 14,926.60

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Solution

The fourth proportional to 25,456.60, 38,201.10 and 14,926.60 is: 22,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456.60 : 38,201.10 = 14,926.60 : x
  2. Step 2: Convert to fraction form
    25,456.60/38,201.10 = 14,926.60/x
  3. Step 3: Cross multiply
    25,456.60x = 38,201.10 × 14,926.60
  4. Step 4: Simplify right side
    25,456.60x = 570,212,539.26
  5. Step 5: Solve for x
    x = 570,212,539.26/25,456.60
  6. Step 6: Final answer
    x = 22,399.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.