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Finding the Fourth Proportional to 39,886.56, 59,827.68 and 12,184.56

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Solution

The fourth proportional to 39,886.56, 59,827.68 and 12,184.56 is: 18,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.56 : 59,827.68 = 12,184.56 : x
  2. Step 2: Convert to fraction form
    39,886.56/59,827.68 = 12,184.56/x
  3. Step 3: Cross multiply
    39,886.56x = 59,827.68 × 12,184.56
  4. Step 4: Simplify right side
    39,886.56x = 728,973,956.62
  5. Step 5: Solve for x
    x = 728,973,956.62/39,886.56
  6. Step 6: Final answer
    x = 18,276.18

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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.