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Finding the Fourth Proportional to 21,303.44, 31,958.94 and 7,262.70

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Solution

The fourth proportional to 21,303.44, 31,958.94 and 7,262.70 is: 10,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.44 : 31,958.94 = 7,262.70 : x
  2. Step 2: Convert to fraction form
    21,303.44/31,958.94 = 7,262.70/x
  3. Step 3: Cross multiply
    21,303.44x = 31,958.94 × 7,262.70
  4. Step 4: Simplify right side
    21,303.44x = 232,108,193.54
  5. Step 5: Solve for x
    x = 232,108,193.54/21,303.44
  6. Step 6: Final answer
    x = 10,895.34

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1.5x scale

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.