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Finding the Fourth Proportional to 61,085.94, 84,339.66 and 38,150.65

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Solution

The fourth proportional to 61,085.94, 84,339.66 and 38,150.65 is: 52,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.94 : 84,339.66 = 38,150.65 : x
  2. Step 2: Convert to fraction form
    61,085.94/84,339.66 = 38,150.65/x
  3. Step 3: Cross multiply
    61,085.94x = 84,339.66 × 38,150.65
  4. Step 4: Simplify right side
    61,085.94x = 3,217,612,849.78
  5. Step 5: Solve for x
    x = 3,217,612,849.78/61,085.94
  6. Step 6: Final answer
    x = 52,673.54

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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.