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Finding the Fourth Proportional to 3,607.99, 5,411.13 and 1,658.32

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Solution

The fourth proportional to 3,607.99, 5,411.13 and 1,658.32 is: 2,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.99 : 5,411.13 = 1,658.32 : x
  2. Step 2: Convert to fraction form
    3,607.99/5,411.13 = 1,658.32/x
  3. Step 3: Cross multiply
    3,607.99x = 5,411.13 × 1,658.32
  4. Step 4: Simplify right side
    3,607.99x = 8,973,385.10
  5. Step 5: Solve for x
    x = 8,973,385.10/3,607.99
  6. Step 6: Final answer
    x = 2,487.09

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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.