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Finding the Fourth Proportional to 65,003.60, 97,359.60 and 53,339.60

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Solution

The fourth proportional to 65,003.60, 97,359.60 and 53,339.60 is: 79,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,003.60 : 97,359.60 = 53,339.60 : x
  2. Step 2: Convert to fraction form
    65,003.60/97,359.60 = 53,339.60/x
  3. Step 3: Cross multiply
    65,003.60x = 97,359.60 × 53,339.60
  4. Step 4: Simplify right side
    65,003.60x = 5,193,122,120.16
  5. Step 5: Solve for x
    x = 5,193,122,120.16/65,003.60
  6. Step 6: Final answer
    x = 79,889.76

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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.