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Finding the Fourth Proportional to 3,549.87, 4,899.78 and 2,558.01

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Solution

The fourth proportional to 3,549.87, 4,899.78 and 2,558.01 is: 3,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.87 : 4,899.78 = 2,558.01 : x
  2. Step 2: Convert to fraction form
    3,549.87/4,899.78 = 2,558.01/x
  3. Step 3: Cross multiply
    3,549.87x = 4,899.78 × 2,558.01
  4. Step 4: Simplify right side
    3,549.87x = 12,533,686.24
  5. Step 5: Solve for x
    x = 12,533,686.24/3,549.87
  6. Step 6: Final answer
    x = 3,530.75

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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.