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Finding the Fourth Proportional to 3,465.80, 5,200.10 and 1,415.24

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Solution

The fourth proportional to 3,465.80, 5,200.10 and 1,415.24 is: 2,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.80 : 5,200.10 = 1,415.24 : x
  2. Step 2: Convert to fraction form
    3,465.80/5,200.10 = 1,415.24/x
  3. Step 3: Cross multiply
    3,465.80x = 5,200.10 × 1,415.24
  4. Step 4: Simplify right side
    3,465.80x = 7,359,389.52
  5. Step 5: Solve for x
    x = 7,359,389.52/3,465.80
  6. Step 6: Final answer
    x = 2,123.43

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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.