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Finding the Fourth Proportional to 36,988.96, 55,495.92 and 12,364.96

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Solution

The fourth proportional to 36,988.96, 55,495.92 and 12,364.96 is: 18,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.96 : 55,495.92 = 12,364.96 : x
  2. Step 2: Convert to fraction form
    36,988.96/55,495.92 = 12,364.96/x
  3. Step 3: Cross multiply
    36,988.96x = 55,495.92 × 12,364.96
  4. Step 4: Simplify right side
    36,988.96x = 686,204,830.96
  5. Step 5: Solve for x
    x = 686,204,830.96/36,988.96
  6. Step 6: Final answer
    x = 18,551.61

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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.