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Finding the Fourth Proportional to 2,374.47, 3,561.72 and 1,557.93

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Solution

The fourth proportional to 2,374.47, 3,561.72 and 1,557.93 is: 2,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.47 : 3,561.72 = 1,557.93 : x
  2. Step 2: Convert to fraction form
    2,374.47/3,561.72 = 1,557.93/x
  3. Step 3: Cross multiply
    2,374.47x = 3,561.72 × 1,557.93
  4. Step 4: Simplify right side
    2,374.47x = 5,548,910.44
  5. Step 5: Solve for x
    x = 5,548,910.44/2,374.47
  6. Step 6: Final answer
    x = 2,336.90

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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.