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Finding the Fourth Proportional to 60,728.08, 91,096.44 and 19,174

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Solution

The fourth proportional to 60,728.08, 91,096.44 and 19,174 is: 28,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.08 : 91,096.44 = 19,174 : x
  2. Step 2: Convert to fraction form
    60,728.08/91,096.44 = 19,174/x
  3. Step 3: Cross multiply
    60,728.08x = 91,096.44 × 19,174
  4. Step 4: Simplify right side
    60,728.08x = 1,746,683,140.56
  5. Step 5: Solve for x
    x = 1,746,683,140.56/60,728.08
  6. Step 6: Final answer
    x = 28,762.36

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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.