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Finding the Fourth Proportional to 54,376.52, 81,597.65 and 19,313.51

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Solution

The fourth proportional to 54,376.52, 81,597.65 and 19,313.51 is: 28,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,376.52 : 81,597.65 = 19,313.51 : x
  2. Step 2: Convert to fraction form
    54,376.52/81,597.65 = 19,313.51/x
  3. Step 3: Cross multiply
    54,376.52x = 81,597.65 × 19,313.51
  4. Step 4: Simplify right side
    54,376.52x = 1,575,936,524.70
  5. Step 5: Solve for x
    x = 1,575,936,524.70/54,376.52
  6. Step 6: Final answer
    x = 28,981.93

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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.