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Finding the Fourth Proportional to 14,905.92, 20,576.64 and 9,607.68

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Solution

The fourth proportional to 14,905.92, 20,576.64 and 9,607.68 is: 13,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.92 : 20,576.64 = 9,607.68 : x
  2. Step 2: Convert to fraction form
    14,905.92/20,576.64 = 9,607.68/x
  3. Step 3: Cross multiply
    14,905.92x = 20,576.64 × 9,607.68
  4. Step 4: Simplify right side
    14,905.92x = 197,693,772.60
  5. Step 5: Solve for x
    x = 197,693,772.60/14,905.92
  6. Step 6: Final answer
    x = 13,262.77

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1.5x scale

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.