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Finding the Fourth Proportional to 21,361.48, 32,046.77 and 7,317.74

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Solution

The fourth proportional to 21,361.48, 32,046.77 and 7,317.74 is: 10,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.48 : 32,046.77 = 7,317.74 : x
  2. Step 2: Convert to fraction form
    21,361.48/32,046.77 = 7,317.74/x
  3. Step 3: Cross multiply
    21,361.48x = 32,046.77 × 7,317.74
  4. Step 4: Simplify right side
    21,361.48x = 234,509,974.23
  5. Step 5: Solve for x
    x = 234,509,974.23/21,361.48
  6. Step 6: Final answer
    x = 10,978.17

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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.