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Finding the Fourth Proportional to 38,542.75, 57,814.14 and 10,840.75

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Solution

The fourth proportional to 38,542.75, 57,814.14 and 10,840.75 is: 16,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,542.75 : 57,814.14 = 10,840.75 : x
  2. Step 2: Convert to fraction form
    38,542.75/57,814.14 = 10,840.75/x
  3. Step 3: Cross multiply
    38,542.75x = 57,814.14 × 10,840.75
  4. Step 4: Simplify right side
    38,542.75x = 626,748,638.21
  5. Step 5: Solve for x
    x = 626,748,638.21/38,542.75
  6. Step 6: Final answer
    x = 16,261.13

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Similar ratio
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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.