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Finding the Fourth Proportional to 25,501.68, 35,188.56 and 15,937.20

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Solution

The fourth proportional to 25,501.68, 35,188.56 and 15,937.20 is: 21,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,501.68 : 35,188.56 = 15,937.20 : x
  2. Step 2: Convert to fraction form
    25,501.68/35,188.56 = 15,937.20/x
  3. Step 3: Cross multiply
    25,501.68x = 35,188.56 × 15,937.20
  4. Step 4: Simplify right side
    25,501.68x = 560,807,118.43
  5. Step 5: Solve for x
    x = 560,807,118.43/25,501.68
  6. Step 6: Final answer
    x = 21,990.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.