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Finding the Fourth Proportional to 38,586.84, 53,247 and 21,588.84

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Solution

The fourth proportional to 38,586.84, 53,247 and 21,588.84 is: 29,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,586.84 : 53,247 = 21,588.84 : x
  2. Step 2: Convert to fraction form
    38,586.84/53,247 = 21,588.84/x
  3. Step 3: Cross multiply
    38,586.84x = 53,247 × 21,588.84
  4. Step 4: Simplify right side
    38,586.84x = 1,149,540,963.48
  5. Step 5: Solve for x
    x = 1,149,540,963.48/38,586.84
  6. Step 6: Final answer
    x = 29,791.01

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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.