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Finding the Fourth Proportional to 64,651.92, 96,988.76 and 33,075.64

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Solution

The fourth proportional to 64,651.92, 96,988.76 and 33,075.64 is: 49,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,651.92 : 96,988.76 = 33,075.64 : x
  2. Step 2: Convert to fraction form
    64,651.92/96,988.76 = 33,075.64/x
  3. Step 3: Cross multiply
    64,651.92x = 96,988.76 × 33,075.64
  4. Step 4: Simplify right side
    64,651.92x = 3,207,965,309.81
  5. Step 5: Solve for x
    x = 3,207,965,309.81/64,651.92
  6. Step 6: Final answer
    x = 49,619.03

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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.