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Finding the Fourth Proportional to 65,145.60, 97,718.40 and 33,976.80

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Solution

The fourth proportional to 65,145.60, 97,718.40 and 33,976.80 is: 50,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.60 : 97,718.40 = 33,976.80 : x
  2. Step 2: Convert to fraction form
    65,145.60/97,718.40 = 33,976.80/x
  3. Step 3: Cross multiply
    65,145.60x = 97,718.40 × 33,976.80
  4. Step 4: Simplify right side
    65,145.60x = 3,320,158,533.12
  5. Step 5: Solve for x
    x = 3,320,158,533.12/65,145.60
  6. Step 6: Final answer
    x = 50,965.20

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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.