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Finding the Fourth Proportional to 65,238.80, 97,858.20 and 23,680.40

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Solution

The fourth proportional to 65,238.80, 97,858.20 and 23,680.40 is: 35,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,238.80 : 97,858.20 = 23,680.40 : x
  2. Step 2: Convert to fraction form
    65,238.80/97,858.20 = 23,680.40/x
  3. Step 3: Cross multiply
    65,238.80x = 97,858.20 × 23,680.40
  4. Step 4: Simplify right side
    65,238.80x = 2,317,321,319.28
  5. Step 5: Solve for x
    x = 2,317,321,319.28/65,238.80
  6. Step 6: Final answer
    x = 35,520.60

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Similar ratio
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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.