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Finding the Fourth Proportional to 18,562.66, 25,617.12 and 13,270.12

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Solution

The fourth proportional to 18,562.66, 25,617.12 and 13,270.12 is: 18,313.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.66 : 25,617.12 = 13,270.12 : x
  2. Step 2: Convert to fraction form
    18,562.66/25,617.12 = 13,270.12/x
  3. Step 3: Cross multiply
    18,562.66x = 25,617.12 × 13,270.12
  4. Step 4: Simplify right side
    18,562.66x = 339,942,256.45
  5. Step 5: Solve for x
    x = 339,942,256.45/18,562.66
  6. Step 6: Final answer
    x = 18,313.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.