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Finding the Fourth Proportional to 18,168.84, 25,040.34 and 13,444.92

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Solution

The fourth proportional to 18,168.84, 25,040.34 and 13,444.92 is: 18,529.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.84 : 25,040.34 = 13,444.92 : x
  2. Step 2: Convert to fraction form
    18,168.84/25,040.34 = 13,444.92/x
  3. Step 3: Cross multiply
    18,168.84x = 25,040.34 × 13,444.92
  4. Step 4: Simplify right side
    18,168.84x = 336,665,368.07
  5. Step 5: Solve for x
    x = 336,665,368.07/18,168.84
  6. Step 6: Final answer
    x = 18,529.82

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Double scale
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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.