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Finding the Fourth Proportional to 36,409.42, 50,239.02 and 21,090.52

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Solution

The fourth proportional to 36,409.42, 50,239.02 and 21,090.52 is: 29,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,409.42 : 50,239.02 = 21,090.52 : x
  2. Step 2: Convert to fraction form
    36,409.42/50,239.02 = 21,090.52/x
  3. Step 3: Cross multiply
    36,409.42x = 50,239.02 × 21,090.52
  4. Step 4: Simplify right side
    36,409.42x = 1,059,567,056.09
  5. Step 5: Solve for x
    x = 1,059,567,056.09/36,409.42
  6. Step 6: Final answer
    x = 29,101.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.