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Finding the Fourth Proportional to 4,665.88, 6,438.92 and 2,570

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Solution

The fourth proportional to 4,665.88, 6,438.92 and 2,570 is: 3,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.88 : 6,438.92 = 2,570 : x
  2. Step 2: Convert to fraction form
    4,665.88/6,438.92 = 2,570/x
  3. Step 3: Cross multiply
    4,665.88x = 6,438.92 × 2,570
  4. Step 4: Simplify right side
    4,665.88x = 16,548,024.40
  5. Step 5: Solve for x
    x = 16,548,024.40/4,665.88
  6. Step 6: Final answer
    x = 3,546.60

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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.