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Finding the Fourth Proportional to 29,408.96, 40,560.90 and 19,347.80

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Solution

The fourth proportional to 29,408.96, 40,560.90 and 19,347.80 is: 26,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,408.96 : 40,560.90 = 19,347.80 : x
  2. Step 2: Convert to fraction form
    29,408.96/40,560.90 = 19,347.80/x
  3. Step 3: Cross multiply
    29,408.96x = 40,560.90 × 19,347.80
  4. Step 4: Simplify right side
    29,408.96x = 784,764,181.02
  5. Step 5: Solve for x
    x = 784,764,181.02/29,408.96
  6. Step 6: Final answer
    x = 26,684.53

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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.