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Finding the Fourth Proportional to 54,395.46, 81,574.71 and 18,848.48

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Solution

The fourth proportional to 54,395.46, 81,574.71 and 18,848.48 is: 28,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,395.46 : 81,574.71 = 18,848.48 : x
  2. Step 2: Convert to fraction form
    54,395.46/81,574.71 = 18,848.48/x
  3. Step 3: Cross multiply
    54,395.46x = 81,574.71 × 18,848.48
  4. Step 4: Simplify right side
    54,395.46x = 1,537,559,270.24
  5. Step 5: Solve for x
    x = 1,537,559,270.24/54,395.46
  6. Step 6: Final answer
    x = 28,266.32

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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.