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Finding the Fourth Proportional to 38,370.78, 57,561.02 and 10,668.78

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Solution

The fourth proportional to 38,370.78, 57,561.02 and 10,668.78 is: 16,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,370.78 : 57,561.02 = 10,668.78 : x
  2. Step 2: Convert to fraction form
    38,370.78/57,561.02 = 10,668.78/x
  3. Step 3: Cross multiply
    38,370.78x = 57,561.02 × 10,668.78
  4. Step 4: Simplify right side
    38,370.78x = 614,105,858.96
  5. Step 5: Solve for x
    x = 614,105,858.96/38,370.78
  6. Step 6: Final answer
    x = 16,004.52

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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.