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Finding the Fourth Proportional to 25,573, 38,362.76 and 7,105

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Solution

The fourth proportional to 25,573, 38,362.76 and 7,105 is: 10,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,573 : 38,362.76 = 7,105 : x
  2. Step 2: Convert to fraction form
    25,573/38,362.76 = 7,105/x
  3. Step 3: Cross multiply
    25,573x = 38,362.76 × 7,105
  4. Step 4: Simplify right side
    25,573x = 272,567,409.80
  5. Step 5: Solve for x
    x = 272,567,409.80/25,573
  6. Step 6: Final answer
    x = 10,658.41

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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.