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Finding the Fourth Proportional to 65,655.36, 98,505.72 and 36,035.28

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Solution

The fourth proportional to 65,655.36, 98,505.72 and 36,035.28 is: 54,065.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,655.36 : 98,505.72 = 36,035.28 : x
  2. Step 2: Convert to fraction form
    65,655.36/98,505.72 = 36,035.28/x
  3. Step 3: Cross multiply
    65,655.36x = 98,505.72 × 36,035.28
  4. Step 4: Simplify right side
    65,655.36x = 3,549,681,201.80
  5. Step 5: Solve for x
    x = 3,549,681,201.80/65,655.36
  6. Step 6: Final answer
    x = 54,065.37

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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.