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Finding the Fourth Proportional to 21,733.94, 29,992.94 and 12,304.32

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Solution

The fourth proportional to 21,733.94, 29,992.94 and 12,304.32 is: 16,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.94 : 29,992.94 = 12,304.32 : x
  2. Step 2: Convert to fraction form
    21,733.94/29,992.94 = 12,304.32/x
  3. Step 3: Cross multiply
    21,733.94x = 29,992.94 × 12,304.32
  4. Step 4: Simplify right side
    21,733.94x = 369,042,669.98
  5. Step 5: Solve for x
    x = 369,042,669.98/21,733.94
  6. Step 6: Final answer
    x = 16,980.02

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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.