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Finding the Fourth Proportional to 73,036.63, 100,790.55 and 39,502.63

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Solution

The fourth proportional to 73,036.63, 100,790.55 and 39,502.63 is: 54,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,036.63 : 100,790.55 = 39,502.63 : x
  2. Step 2: Convert to fraction form
    73,036.63/100,790.55 = 39,502.63/x
  3. Step 3: Cross multiply
    73,036.63x = 100,790.55 × 39,502.63
  4. Step 4: Simplify right side
    73,036.63x = 3,981,491,300.19
  5. Step 5: Solve for x
    x = 3,981,491,300.19/73,036.63
  6. Step 6: Final answer
    x = 54,513.63

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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.