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Finding the Fourth Proportional to 21,597.66, 29,813.13 and 16,883.46

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Solution

The fourth proportional to 21,597.66, 29,813.13 and 16,883.46 is: 23,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,597.66 : 29,813.13 = 16,883.46 : x
  2. Step 2: Convert to fraction form
    21,597.66/29,813.13 = 16,883.46/x
  3. Step 3: Cross multiply
    21,597.66x = 29,813.13 × 16,883.46
  4. Step 4: Simplify right side
    21,597.66x = 503,348,787.83
  5. Step 5: Solve for x
    x = 503,348,787.83/21,597.66
  6. Step 6: Final answer
    x = 23,305.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.