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Finding the Fourth Proportional to 21,833.66, 32,696.71 and 12,450.51

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Solution

The fourth proportional to 21,833.66, 32,696.71 and 12,450.51 is: 18,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.66 : 32,696.71 = 12,450.51 : x
  2. Step 2: Convert to fraction form
    21,833.66/32,696.71 = 12,450.51/x
  3. Step 3: Cross multiply
    21,833.66x = 32,696.71 × 12,450.51
  4. Step 4: Simplify right side
    21,833.66x = 407,090,714.82
  5. Step 5: Solve for x
    x = 407,090,714.82/21,833.66
  6. Step 6: Final answer
    x = 18,645.10

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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.