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Finding the Fourth Proportional to 58,439.84, 87,674.48 and 16,886.56

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Solution

The fourth proportional to 58,439.84, 87,674.48 and 16,886.56 is: 25,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,439.84 : 87,674.48 = 16,886.56 : x
  2. Step 2: Convert to fraction form
    58,439.84/87,674.48 = 16,886.56/x
  3. Step 3: Cross multiply
    58,439.84x = 87,674.48 × 16,886.56
  4. Step 4: Simplify right side
    58,439.84x = 1,480,520,366.99
  5. Step 5: Solve for x
    x = 1,480,520,366.99/58,439.84
  6. Step 6: Final answer
    x = 25,334.09

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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.