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Finding the Fourth Proportional to 18,160.00, 25,062.84 and 10,993.87

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Solution

The fourth proportional to 18,160.00, 25,062.84 and 10,993.87 is: 15,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.00 : 25,062.84 = 10,993.87 : x
  2. Step 2: Convert to fraction form
    18,160.00/25,062.84 = 10,993.87/x
  3. Step 3: Cross multiply
    18,160.00x = 25,062.84 × 10,993.87
  4. Step 4: Simplify right side
    18,160.00x = 275,537,534.71
  5. Step 5: Solve for x
    x = 275,537,534.71/18,160.00
  6. Step 6: Final answer
    x = 15,172.77

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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.