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Finding the Fourth Proportional to 65,993.68, 91,047.40 and 43,344.96

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Solution

The fourth proportional to 65,993.68, 91,047.40 and 43,344.96 is: 59,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,993.68 : 91,047.40 = 43,344.96 : x
  2. Step 2: Convert to fraction form
    65,993.68/91,047.40 = 43,344.96/x
  3. Step 3: Cross multiply
    65,993.68x = 91,047.40 × 43,344.96
  4. Step 4: Simplify right side
    65,993.68x = 3,946,445,911.10
  5. Step 5: Solve for x
    x = 3,946,445,911.10/65,993.68
  6. Step 6: Final answer
    x = 59,800.36

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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.