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Finding the Fourth Proportional to 5,154.99, 7,732.49 and 1,867.32

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Solution

The fourth proportional to 5,154.99, 7,732.49 and 1,867.32 is: 2,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.99 : 7,732.49 = 1,867.32 : x
  2. Step 2: Convert to fraction form
    5,154.99/7,732.49 = 1,867.32/x
  3. Step 3: Cross multiply
    5,154.99x = 7,732.49 × 1,867.32
  4. Step 4: Simplify right side
    5,154.99x = 14,439,033.23
  5. Step 5: Solve for x
    x = 14,439,033.23/5,154.99
  6. Step 6: Final answer
    x = 2,800.98

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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.