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Finding the Fourth Proportional to 5,409.70, 7,465.26 and 3,051.88

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Solution

The fourth proportional to 5,409.70, 7,465.26 and 3,051.88 is: 4,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.70 : 7,465.26 = 3,051.88 : x
  2. Step 2: Convert to fraction form
    5,409.70/7,465.26 = 3,051.88/x
  3. Step 3: Cross multiply
    5,409.70x = 7,465.26 × 3,051.88
  4. Step 4: Simplify right side
    5,409.70x = 22,783,077.69
  5. Step 5: Solve for x
    x = 22,783,077.69/5,409.70
  6. Step 6: Final answer
    x = 4,211.52

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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.