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Finding the Fourth Proportional to 34,776.99, 47,992.59 and 19,669.80

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Solution

The fourth proportional to 34,776.99, 47,992.59 and 19,669.80 is: 27,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,776.99 : 47,992.59 = 19,669.80 : x
  2. Step 2: Convert to fraction form
    34,776.99/47,992.59 = 19,669.80/x
  3. Step 3: Cross multiply
    34,776.99x = 47,992.59 × 19,669.80
  4. Step 4: Simplify right side
    34,776.99x = 944,004,646.78
  5. Step 5: Solve for x
    x = 944,004,646.78/34,776.99
  6. Step 6: Final answer
    x = 27,144.52

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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.