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Finding the Fourth Proportional to 18,247.01, 25,159.29 and 12,870.33

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Solution

The fourth proportional to 18,247.01, 25,159.29 and 12,870.33 is: 17,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.01 : 25,159.29 = 12,870.33 : x
  2. Step 2: Convert to fraction form
    18,247.01/25,159.29 = 12,870.33/x
  3. Step 3: Cross multiply
    18,247.01x = 25,159.29 × 12,870.33
  4. Step 4: Simplify right side
    18,247.01x = 323,808,364.87
  5. Step 5: Solve for x
    x = 323,808,364.87/18,247.01
  6. Step 6: Final answer
    x = 17,745.83

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