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Finding the Fourth Proportional to 18,040.60, 27,041.46 and 10,245.16

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Solution

The fourth proportional to 18,040.60, 27,041.46 and 10,245.16 is: 15,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.60 : 27,041.46 = 10,245.16 : x
  2. Step 2: Convert to fraction form
    18,040.60/27,041.46 = 10,245.16/x
  3. Step 3: Cross multiply
    18,040.60x = 27,041.46 × 10,245.16
  4. Step 4: Simplify right side
    18,040.60x = 277,044,137.35
  5. Step 5: Solve for x
    x = 277,044,137.35/18,040.60
  6. Step 6: Final answer
    x = 15,356.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.