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Finding the Fourth Proportional to 54,573.51, 81,859.95 and 15,130.47

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Solution

The fourth proportional to 54,573.51, 81,859.95 and 15,130.47 is: 22,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,573.51 : 81,859.95 = 15,130.47 : x
  2. Step 2: Convert to fraction form
    54,573.51/81,859.95 = 15,130.47/x
  3. Step 3: Cross multiply
    54,573.51x = 81,859.95 × 15,130.47
  4. Step 4: Simplify right side
    54,573.51x = 1,238,579,517.68
  5. Step 5: Solve for x
    x = 1,238,579,517.68/54,573.51
  6. Step 6: Final answer
    x = 22,695.62

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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.