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Finding the Fourth Proportional to 2,355.42, 3,252.54 and 1,729.50

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Solution

The fourth proportional to 2,355.42, 3,252.54 and 1,729.50 is: 2,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.42 : 3,252.54 = 1,729.50 : x
  2. Step 2: Convert to fraction form
    2,355.42/3,252.54 = 1,729.50/x
  3. Step 3: Cross multiply
    2,355.42x = 3,252.54 × 1,729.50
  4. Step 4: Simplify right side
    2,355.42x = 5,625,267.93
  5. Step 5: Solve for x
    x = 5,625,267.93/2,355.42
  6. Step 6: Final answer
    x = 2,388.22

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1.5x scale

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.