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Finding the Fourth Proportional to 13,673.16, 20,509.83 and 4,908.15

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Solution

The fourth proportional to 13,673.16, 20,509.83 and 4,908.15 is: 7,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.16 : 20,509.83 = 4,908.15 : x
  2. Step 2: Convert to fraction form
    13,673.16/20,509.83 = 4,908.15/x
  3. Step 3: Cross multiply
    13,673.16x = 20,509.83 × 4,908.15
  4. Step 4: Simplify right side
    13,673.16x = 100,665,322.11
  5. Step 5: Solve for x
    x = 100,665,322.11/13,673.16
  6. Step 6: Final answer
    x = 7,362.26

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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.