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Finding the Fourth Proportional to 29,473.98, 40,676.76 and 18,146.40

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Solution

The fourth proportional to 29,473.98, 40,676.76 and 18,146.40 is: 25,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,473.98 : 40,676.76 = 18,146.40 : x
  2. Step 2: Convert to fraction form
    29,473.98/40,676.76 = 18,146.40/x
  3. Step 3: Cross multiply
    29,473.98x = 40,676.76 × 18,146.40
  4. Step 4: Simplify right side
    29,473.98x = 738,136,757.66
  5. Step 5: Solve for x
    x = 738,136,757.66/29,473.98
  6. Step 6: Final answer
    x = 25,043.67

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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.