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Finding the Fourth Proportional to 25,419.94, 38,129.92 and 6,951.94

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Solution

The fourth proportional to 25,419.94, 38,129.92 and 6,951.94 is: 10,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.94 : 38,129.92 = 6,951.94 : x
  2. Step 2: Convert to fraction form
    25,419.94/38,129.92 = 6,951.94/x
  3. Step 3: Cross multiply
    25,419.94x = 38,129.92 × 6,951.94
  4. Step 4: Simplify right side
    25,419.94x = 265,076,803.34
  5. Step 5: Solve for x
    x = 265,076,803.34/25,419.94
  6. Step 6: Final answer
    x = 10,427.91

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