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Finding the Fourth Proportional to 64,966.98, 97,453.94 and 20,597.21

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Solution

The fourth proportional to 64,966.98, 97,453.94 and 20,597.21 is: 30,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,966.98 : 97,453.94 = 20,597.21 : x
  2. Step 2: Convert to fraction form
    64,966.98/97,453.94 = 20,597.21/x
  3. Step 3: Cross multiply
    64,966.98x = 97,453.94 × 20,597.21
  4. Step 4: Simplify right side
    64,966.98x = 2,007,278,677.25
  5. Step 5: Solve for x
    x = 2,007,278,677.25/64,966.98
  6. Step 6: Final answer
    x = 30,896.91

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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.