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Finding the Fourth Proportional to 13,473.60, 20,203.20 and 5,673.60

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Solution

The fourth proportional to 13,473.60, 20,203.20 and 5,673.60 is: 8,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.60 : 20,203.20 = 5,673.60 : x
  2. Step 2: Convert to fraction form
    13,473.60/20,203.20 = 5,673.60/x
  3. Step 3: Cross multiply
    13,473.60x = 20,203.20 × 5,673.60
  4. Step 4: Simplify right side
    13,473.60x = 114,624,875.52
  5. Step 5: Solve for x
    x = 114,624,875.52/13,473.60
  6. Step 6: Final answer
    x = 8,507.37

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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.