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Finding the Fourth Proportional to 14,777.97, 20,404.50 and 10,578.93

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Solution

The fourth proportional to 14,777.97, 20,404.50 and 10,578.93 is: 14,606.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.97 : 20,404.50 = 10,578.93 : x
  2. Step 2: Convert to fraction form
    14,777.97/20,404.50 = 10,578.93/x
  3. Step 3: Cross multiply
    14,777.97x = 20,404.50 × 10,578.93
  4. Step 4: Simplify right side
    14,777.97x = 215,857,777.19
  5. Step 5: Solve for x
    x = 215,857,777.19/14,777.97
  6. Step 6: Final answer
    x = 14,606.73

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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.