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Finding the Fourth Proportional to 25,369.81, 38,059.47 and 7,835.54

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Solution

The fourth proportional to 25,369.81, 38,059.47 and 7,835.54 is: 11,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,369.81 : 38,059.47 = 7,835.54 : x
  2. Step 2: Convert to fraction form
    25,369.81/38,059.47 = 7,835.54/x
  3. Step 3: Cross multiply
    25,369.81x = 38,059.47 × 7,835.54
  4. Step 4: Simplify right side
    25,369.81x = 298,216,309.27
  5. Step 5: Solve for x
    x = 298,216,309.27/25,369.81
  6. Step 6: Final answer
    x = 11,754.77

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1.5x scale

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.