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Finding the Fourth Proportional to 36,658.48, 54,987.72 and 13,277.20

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Solution

The fourth proportional to 36,658.48, 54,987.72 and 13,277.20 is: 19,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,658.48 : 54,987.72 = 13,277.20 : x
  2. Step 2: Convert to fraction form
    36,658.48/54,987.72 = 13,277.20/x
  3. Step 3: Cross multiply
    36,658.48x = 54,987.72 × 13,277.20
  4. Step 4: Simplify right side
    36,658.48x = 730,082,955.98
  5. Step 5: Solve for x
    x = 730,082,955.98/36,658.48
  6. Step 6: Final answer
    x = 19,915.80

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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.