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Finding the Fourth Proportional to 2,472.93, 3,416.95 and 1,945.99

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Solution

The fourth proportional to 2,472.93, 3,416.95 and 1,945.99 is: 2,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.93 : 3,416.95 = 1,945.99 : x
  2. Step 2: Convert to fraction form
    2,472.93/3,416.95 = 1,945.99/x
  3. Step 3: Cross multiply
    2,472.93x = 3,416.95 × 1,945.99
  4. Step 4: Simplify right side
    2,472.93x = 6,649,357.23
  5. Step 5: Solve for x
    x = 6,649,357.23/2,472.93
  6. Step 6: Final answer
    x = 2,688.86

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Why These Related Problems?

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