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Finding the Fourth Proportional to 25,657.01, 38,486.59 and 8,126.45

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Solution

The fourth proportional to 25,657.01, 38,486.59 and 8,126.45 is: 12,190.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.01 : 38,486.59 = 8,126.45 : x
  2. Step 2: Convert to fraction form
    25,657.01/38,486.59 = 8,126.45/x
  3. Step 3: Cross multiply
    25,657.01x = 38,486.59 × 8,126.45
  4. Step 4: Simplify right side
    25,657.01x = 312,759,349.31
  5. Step 5: Solve for x
    x = 312,759,349.31/25,657.01
  6. Step 6: Final answer
    x = 12,190.02

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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.