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Finding the Fourth Proportional to 3,573.99, 5,318.80 and 3,442.77

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Solution

The fourth proportional to 3,573.99, 5,318.80 and 3,442.77 is: 5,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.99 : 5,318.80 = 3,442.77 : x
  2. Step 2: Convert to fraction form
    3,573.99/5,318.80 = 3,442.77/x
  3. Step 3: Cross multiply
    3,573.99x = 5,318.80 × 3,442.77
  4. Step 4: Simplify right side
    3,573.99x = 18,311,396.47
  5. Step 5: Solve for x
    x = 18,311,396.47/3,573.99
  6. Step 6: Final answer
    x = 5,123.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.