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Finding the Fourth Proportional to 54,564.58, 81,848.52 and 21,283.30

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Solution

The fourth proportional to 54,564.58, 81,848.52 and 21,283.30 is: 31,925.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,564.58 : 81,848.52 = 21,283.30 : x
  2. Step 2: Convert to fraction form
    54,564.58/81,848.52 = 21,283.30/x
  3. Step 3: Cross multiply
    54,564.58x = 81,848.52 × 21,283.30
  4. Step 4: Simplify right side
    54,564.58x = 1,742,006,605.72
  5. Step 5: Solve for x
    x = 1,742,006,605.72/54,564.58
  6. Step 6: Final answer
    x = 31,925.59

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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.