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Finding the Fourth Proportional to 3,602.58, 5,409.52 and 2,148.22

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Solution

The fourth proportional to 3,602.58, 5,409.52 and 2,148.22 is: 3,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.58 : 5,409.52 = 2,148.22 : x
  2. Step 2: Convert to fraction form
    3,602.58/5,409.52 = 2,148.22/x
  3. Step 3: Cross multiply
    3,602.58x = 5,409.52 × 2,148.22
  4. Step 4: Simplify right side
    3,602.58x = 11,620,839.05
  5. Step 5: Solve for x
    x = 11,620,839.05/3,602.58
  6. Step 6: Final answer
    x = 3,225.70

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1.5x scale

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.