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Finding the Fourth Proportional to 29,980.44, 41,378.67 and 18,655.02

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Solution

The fourth proportional to 29,980.44, 41,378.67 and 18,655.02 is: 25,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.44 : 41,378.67 = 18,655.02 : x
  2. Step 2: Convert to fraction form
    29,980.44/41,378.67 = 18,655.02/x
  3. Step 3: Cross multiply
    29,980.44x = 41,378.67 × 18,655.02
  4. Step 4: Simplify right side
    29,980.44x = 771,919,916.42
  5. Step 5: Solve for x
    x = 771,919,916.42/29,980.44
  6. Step 6: Final answer
    x = 25,747.45

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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.