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Finding the Fourth Proportional to 25,803.57, 38,696.06 and 8,931.99

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Solution

The fourth proportional to 25,803.57, 38,696.06 and 8,931.99 is: 13,394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.57 : 38,696.06 = 8,931.99 : x
  2. Step 2: Convert to fraction form
    25,803.57/38,696.06 = 8,931.99/x
  3. Step 3: Cross multiply
    25,803.57x = 38,696.06 × 8,931.99
  4. Step 4: Simplify right side
    25,803.57x = 345,632,820.96
  5. Step 5: Solve for x
    x = 345,632,820.96/25,803.57
  6. Step 6: Final answer
    x = 13,394.77

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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.