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Finding the Fourth Proportional to 54,492.32, 81,725.52 and 15,048.64

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Solution

The fourth proportional to 54,492.32, 81,725.52 and 15,048.64 is: 22,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,492.32 : 81,725.52 = 15,048.64 : x
  2. Step 2: Convert to fraction form
    54,492.32/81,725.52 = 15,048.64/x
  3. Step 3: Cross multiply
    54,492.32x = 81,725.52 × 15,048.64
  4. Step 4: Simplify right side
    54,492.32x = 1,229,857,929.29
  5. Step 5: Solve for x
    x = 1,229,857,929.29/54,492.32
  6. Step 6: Final answer
    x = 22,569.38

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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.