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Finding the Fourth Proportional to 3,549.84, 5,323.68 and 1,085.01

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Solution

The fourth proportional to 3,549.84, 5,323.68 and 1,085.01 is: 1,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.84 : 5,323.68 = 1,085.01 : x
  2. Step 2: Convert to fraction form
    3,549.84/5,323.68 = 1,085.01/x
  3. Step 3: Cross multiply
    3,549.84x = 5,323.68 × 1,085.01
  4. Step 4: Simplify right side
    3,549.84x = 5,776,246.04
  5. Step 5: Solve for x
    x = 5,776,246.04/3,549.84
  6. Step 6: Final answer
    x = 1,627.18

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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.