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Finding the Fourth Proportional to 58,530.83, 87,787.33 and 19,087.88

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Solution

The fourth proportional to 58,530.83, 87,787.33 and 19,087.88 is: 28,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,530.83 : 87,787.33 = 19,087.88 : x
  2. Step 2: Convert to fraction form
    58,530.83/87,787.33 = 19,087.88/x
  3. Step 3: Cross multiply
    58,530.83x = 87,787.33 × 19,087.88
  4. Step 4: Simplify right side
    58,530.83x = 1,675,673,533.90
  5. Step 5: Solve for x
    x = 1,675,673,533.90/58,530.83
  6. Step 6: Final answer
    x = 28,628.91

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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.