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Finding the Fourth Proportional to 36,807.70, 55,222.63 and 13,112.15

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Solution

The fourth proportional to 36,807.70, 55,222.63 and 13,112.15 is: 19,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,807.70 : 55,222.63 = 13,112.15 : x
  2. Step 2: Convert to fraction form
    36,807.70/55,222.63 = 13,112.15/x
  3. Step 3: Cross multiply
    36,807.70x = 55,222.63 × 13,112.15
  4. Step 4: Simplify right side
    36,807.70x = 724,087,407.95
  5. Step 5: Solve for x
    x = 724,087,407.95/36,807.70
  6. Step 6: Final answer
    x = 19,672.17

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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.