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Finding the Fourth Proportional to 36,201.80, 54,312.30 and 12,825.80

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Solution

The fourth proportional to 36,201.80, 54,312.30 and 12,825.80 is: 19,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,201.80 : 54,312.30 = 12,825.80 : x
  2. Step 2: Convert to fraction form
    36,201.80/54,312.30 = 12,825.80/x
  3. Step 3: Cross multiply
    36,201.80x = 54,312.30 × 12,825.80
  4. Step 4: Simplify right side
    36,201.80x = 696,598,697.34
  5. Step 5: Solve for x
    x = 696,598,697.34/36,201.80
  6. Step 6: Final answer
    x = 19,242.10

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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.