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Finding the Fourth Proportional to 36,090.90, 54,135.90 and 16,355.70

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Solution

The fourth proportional to 36,090.90, 54,135.90 and 16,355.70 is: 24,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.90 : 54,135.90 = 16,355.70 : x
  2. Step 2: Convert to fraction form
    36,090.90/54,135.90 = 16,355.70/x
  3. Step 3: Cross multiply
    36,090.90x = 54,135.90 × 16,355.70
  4. Step 4: Simplify right side
    36,090.90x = 885,430,539.63
  5. Step 5: Solve for x
    x = 885,430,539.63/36,090.90
  6. Step 6: Final answer
    x = 24,533.35

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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.