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Finding the Fourth Proportional to 12,588.16, 18,880.08 and 3,352

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Solution

The fourth proportional to 12,588.16, 18,880.08 and 3,352 is: 5,027.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.16 : 18,880.08 = 3,352 : x
  2. Step 2: Convert to fraction form
    12,588.16/18,880.08 = 3,352/x
  3. Step 3: Cross multiply
    12,588.16x = 18,880.08 × 3,352
  4. Step 4: Simplify right side
    12,588.16x = 63,286,028.16
  5. Step 5: Solve for x
    x = 63,286,028.16/12,588.16
  6. Step 6: Final answer
    x = 5,027.42

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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.