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Finding the Fourth Proportional to 64,873.50, 97,309.67 and 20,500.26

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Solution

The fourth proportional to 64,873.50, 97,309.67 and 20,500.26 is: 30,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.50 : 97,309.67 = 20,500.26 : x
  2. Step 2: Convert to fraction form
    64,873.50/97,309.67 = 20,500.26/x
  3. Step 3: Cross multiply
    64,873.50x = 97,309.67 × 20,500.26
  4. Step 4: Simplify right side
    64,873.50x = 1,994,873,535.51
  5. Step 5: Solve for x
    x = 1,994,873,535.51/64,873.50
  6. Step 6: Final answer
    x = 30,750.21

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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.