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Finding the Fourth Proportional to 38,469.55, 57,710.71 and 13,503.13

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Solution

The fourth proportional to 38,469.55, 57,710.71 and 13,503.13 is: 20,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.55 : 57,710.71 = 13,503.13 : x
  2. Step 2: Convert to fraction form
    38,469.55/57,710.71 = 13,503.13/x
  3. Step 3: Cross multiply
    38,469.55x = 57,710.71 × 13,503.13
  4. Step 4: Simplify right side
    38,469.55x = 779,274,958.60
  5. Step 5: Solve for x
    x = 779,274,958.60/38,469.55
  6. Step 6: Final answer
    x = 20,256.93

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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.