Home / 36,813.10-55,220.13-10,518.70

Finding the Fourth Proportional to 36,813.10, 55,220.13 and 10,518.70

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Solution

The fourth proportional to 36,813.10, 55,220.13 and 10,518.70 is: 15,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,813.10 : 55,220.13 = 10,518.70 : x
  2. Step 2: Convert to fraction form
    36,813.10/55,220.13 = 10,518.70/x
  3. Step 3: Cross multiply
    36,813.10x = 55,220.13 × 10,518.70
  4. Step 4: Simplify right side
    36,813.10x = 580,843,981.43
  5. Step 5: Solve for x
    x = 580,843,981.43/36,813.10
  6. Step 6: Final answer
    x = 15,778.19

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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.