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Finding the Fourth Proportional to 65,201.28, 89,975.36 and 35,392.64

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Solution

The fourth proportional to 65,201.28, 89,975.36 and 35,392.64 is: 48,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,201.28 : 89,975.36 = 35,392.64 : x
  2. Step 2: Convert to fraction form
    65,201.28/89,975.36 = 35,392.64/x
  3. Step 3: Cross multiply
    65,201.28x = 89,975.36 × 35,392.64
  4. Step 4: Simplify right side
    65,201.28x = 3,184,465,525.35
  5. Step 5: Solve for x
    x = 3,184,465,525.35/65,201.28
  6. Step 6: Final answer
    x = 48,840.54

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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.