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Finding the Fourth Proportional to 3,542.03, 4,887.34 and 1,970.12

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Solution

The fourth proportional to 3,542.03, 4,887.34 and 1,970.12 is: 2,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.03 : 4,887.34 = 1,970.12 : x
  2. Step 2: Convert to fraction form
    3,542.03/4,887.34 = 1,970.12/x
  3. Step 3: Cross multiply
    3,542.03x = 4,887.34 × 1,970.12
  4. Step 4: Simplify right side
    3,542.03x = 9,628,653.57
  5. Step 5: Solve for x
    x = 9,628,653.57/3,542.03
  6. Step 6: Final answer
    x = 2,718.40

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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.