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Finding the Fourth Proportional to 65,493.51, 98,158.03 and 28,009.48

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Solution

The fourth proportional to 65,493.51, 98,158.03 and 28,009.48 is: 41,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,493.51 : 98,158.03 = 28,009.48 : x
  2. Step 2: Convert to fraction form
    65,493.51/98,158.03 = 28,009.48/x
  3. Step 3: Cross multiply
    65,493.51x = 98,158.03 × 28,009.48
  4. Step 4: Simplify right side
    65,493.51x = 2,749,355,378.12
  5. Step 5: Solve for x
    x = 2,749,355,378.12/65,493.51
  6. Step 6: Final answer
    x = 41,979.05

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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.