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Finding the Fourth Proportional to 36,681.88, 50,507.65 and 28,647.99

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Solution

The fourth proportional to 36,681.88, 50,507.65 and 28,647.99 is: 39,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,681.88 : 50,507.65 = 28,647.99 : x
  2. Step 2: Convert to fraction form
    36,681.88/50,507.65 = 28,647.99/x
  3. Step 3: Cross multiply
    36,681.88x = 50,507.65 × 28,647.99
  4. Step 4: Simplify right side
    36,681.88x = 1,446,942,849.60
  5. Step 5: Solve for x
    x = 1,446,942,849.60/36,681.88
  6. Step 6: Final answer
    x = 39,445.71

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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.