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Finding the Fourth Proportional to 3,573.99, 5,360.95 and 1,381.19

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Solution

The fourth proportional to 3,573.99, 5,360.95 and 1,381.19 is: 2,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.99 : 5,360.95 = 1,381.19 : x
  2. Step 2: Convert to fraction form
    3,573.99/5,360.95 = 1,381.19/x
  3. Step 3: Cross multiply
    3,573.99x = 5,360.95 × 1,381.19
  4. Step 4: Simplify right side
    3,573.99x = 7,404,465.45
  5. Step 5: Solve for x
    x = 7,404,465.45/3,573.99
  6. Step 6: Final answer
    x = 2,071.76

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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.