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Finding the Fourth Proportional to 14,928, 20,607.12 and 9,342.24

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Solution

The fourth proportional to 14,928, 20,607.12 and 9,342.24 is: 12,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,928 : 20,607.12 = 9,342.24 : x
  2. Step 2: Convert to fraction form
    14,928/20,607.12 = 9,342.24/x
  3. Step 3: Cross multiply
    14,928x = 20,607.12 × 9,342.24
  4. Step 4: Simplify right side
    14,928x = 192,516,660.75
  5. Step 5: Solve for x
    x = 192,516,660.75/14,928
  6. Step 6: Final answer
    x = 12,896.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.