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Finding the Fourth Proportional to 11,903.92, 16,425.48 and 7,426.96

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Solution

The fourth proportional to 11,903.92, 16,425.48 and 7,426.96 is: 10,248.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.92 : 16,425.48 = 7,426.96 : x
  2. Step 2: Convert to fraction form
    11,903.92/16,425.48 = 7,426.96/x
  3. Step 3: Cross multiply
    11,903.92x = 16,425.48 × 7,426.96
  4. Step 4: Simplify right side
    11,903.92x = 121,991,382.94
  5. Step 5: Solve for x
    x = 121,991,382.94/11,903.92
  6. Step 6: Final answer
    x = 10,248.00

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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.