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Finding the Fourth Proportional to 14,603.52, 21,905.28 and 12,408.96

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Solution

The fourth proportional to 14,603.52, 21,905.28 and 12,408.96 is: 18,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.52 : 21,905.28 = 12,408.96 : x
  2. Step 2: Convert to fraction form
    14,603.52/21,905.28 = 12,408.96/x
  3. Step 3: Cross multiply
    14,603.52x = 21,905.28 × 12,408.96
  4. Step 4: Simplify right side
    14,603.52x = 271,821,743.31
  5. Step 5: Solve for x
    x = 271,821,743.31/14,603.52
  6. Step 6: Final answer
    x = 18,613.44

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1.5x scale

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.