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Finding the Fourth Proportional to 18,201.94, 25,126.42 and 12,237.06

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Solution

The fourth proportional to 18,201.94, 25,126.42 and 12,237.06 is: 16,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.94 : 25,126.42 = 12,237.06 : x
  2. Step 2: Convert to fraction form
    18,201.94/25,126.42 = 12,237.06/x
  3. Step 3: Cross multiply
    18,201.94x = 25,126.42 × 12,237.06
  4. Step 4: Simplify right side
    18,201.94x = 307,473,509.13
  5. Step 5: Solve for x
    x = 307,473,509.13/18,201.94
  6. Step 6: Final answer
    x = 16,892.35

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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.