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Finding the Fourth Proportional to 2,438.95, 3,657.74 and 1,051.99

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Solution

The fourth proportional to 2,438.95, 3,657.74 and 1,051.99 is: 1,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.95 : 3,657.74 = 1,051.99 : x
  2. Step 2: Convert to fraction form
    2,438.95/3,657.74 = 1,051.99/x
  3. Step 3: Cross multiply
    2,438.95x = 3,657.74 × 1,051.99
  4. Step 4: Simplify right side
    2,438.95x = 3,847,905.90
  5. Step 5: Solve for x
    x = 3,847,905.90/2,438.95
  6. Step 6: Final answer
    x = 1,577.69

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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.