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Finding the Fourth Proportional to 18,178.16, 25,086.12 and 10,726.16

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Solution

The fourth proportional to 18,178.16, 25,086.12 and 10,726.16 is: 14,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.16 : 25,086.12 = 10,726.16 : x
  2. Step 2: Convert to fraction form
    18,178.16/25,086.12 = 10,726.16/x
  3. Step 3: Cross multiply
    18,178.16x = 25,086.12 × 10,726.16
  4. Step 4: Simplify right side
    18,178.16x = 269,077,736.90
  5. Step 5: Solve for x
    x = 269,077,736.90/18,178.16
  6. Step 6: Final answer
    x = 14,802.25

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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.