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Finding the Fourth Proportional to 43,607.52, 65,420.96 and 15,905.44

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Solution

The fourth proportional to 43,607.52, 65,420.96 and 15,905.44 is: 23,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,607.52 : 65,420.96 = 15,905.44 : x
  2. Step 2: Convert to fraction form
    43,607.52/65,420.96 = 15,905.44/x
  3. Step 3: Cross multiply
    43,607.52x = 65,420.96 × 15,905.44
  4. Step 4: Simplify right side
    43,607.52x = 1,040,549,154.02
  5. Step 5: Solve for x
    x = 1,040,549,154.02/43,607.52
  6. Step 6: Final answer
    x = 23,861.69

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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.