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Finding the Fourth Proportional to 1,957.99, 2,939.61 and 1,925.17

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Solution

The fourth proportional to 1,957.99, 2,939.61 and 1,925.17 is: 2,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.99 : 2,939.61 = 1,925.17 : x
  2. Step 2: Convert to fraction form
    1,957.99/2,939.61 = 1,925.17/x
  3. Step 3: Cross multiply
    1,957.99x = 2,939.61 × 1,925.17
  4. Step 4: Simplify right side
    1,957.99x = 5,659,248.98
  5. Step 5: Solve for x
    x = 5,659,248.98/1,957.99
  6. Step 6: Final answer
    x = 2,890.34

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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.