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Finding the Fourth Proportional to 43,542.46, 65,342.76 and 15,840.46

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Solution

The fourth proportional to 43,542.46, 65,342.76 and 15,840.46 is: 23,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,542.46 : 65,342.76 = 15,840.46 : x
  2. Step 2: Convert to fraction form
    43,542.46/65,342.76 = 15,840.46/x
  3. Step 3: Cross multiply
    43,542.46x = 65,342.76 × 15,840.46
  4. Step 4: Simplify right side
    43,542.46x = 1,035,059,376.07
  5. Step 5: Solve for x
    x = 1,035,059,376.07/43,542.46
  6. Step 6: Final answer
    x = 23,771.27

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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.