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Finding the Fourth Proportional to 3,374.07, 4,656.68 and 1,957.79

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Solution

The fourth proportional to 3,374.07, 4,656.68 and 1,957.79 is: 2,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.07 : 4,656.68 = 1,957.79 : x
  2. Step 2: Convert to fraction form
    3,374.07/4,656.68 = 1,957.79/x
  3. Step 3: Cross multiply
    3,374.07x = 4,656.68 × 1,957.79
  4. Step 4: Simplify right side
    3,374.07x = 9,116,768.46
  5. Step 5: Solve for x
    x = 9,116,768.46/3,374.07
  6. Step 6: Final answer
    x = 2,702.01

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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.