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Finding the Fourth Proportional to 29,740.45, 41,055.02 and 18,999.45

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Solution

The fourth proportional to 29,740.45, 41,055.02 and 18,999.45 is: 26,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,740.45 : 41,055.02 = 18,999.45 : x
  2. Step 2: Convert to fraction form
    29,740.45/41,055.02 = 18,999.45/x
  3. Step 3: Cross multiply
    29,740.45x = 41,055.02 × 18,999.45
  4. Step 4: Simplify right side
    29,740.45x = 780,022,799.74
  5. Step 5: Solve for x
    x = 780,022,799.74/29,740.45
  6. Step 6: Final answer
    x = 26,227.67

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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.