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Finding the Fourth Proportional to 3,713.44, 5,570.16 and 1,660

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Solution

The fourth proportional to 3,713.44, 5,570.16 and 1,660 is: 2,490

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.44 : 5,570.16 = 1,660 : x
  2. Step 2: Convert to fraction form
    3,713.44/5,570.16 = 1,660/x
  3. Step 3: Cross multiply
    3,713.44x = 5,570.16 × 1,660
  4. Step 4: Simplify right side
    3,713.44x = 9,246,465.60
  5. Step 5: Solve for x
    x = 9,246,465.60/3,713.44
  6. Step 6: Final answer
    x = 2,490

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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.