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Finding the Fourth Proportional to 58,792.34, 81,083.16 and 39,668.85

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Solution

The fourth proportional to 58,792.34, 81,083.16 and 39,668.85 is: 54,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,792.34 : 81,083.16 = 39,668.85 : x
  2. Step 2: Convert to fraction form
    58,792.34/81,083.16 = 39,668.85/x
  3. Step 3: Cross multiply
    58,792.34x = 81,083.16 × 39,668.85
  4. Step 4: Simplify right side
    58,792.34x = 3,216,475,711.57
  5. Step 5: Solve for x
    x = 3,216,475,711.57/58,792.34
  6. Step 6: Final answer
    x = 54,709.09

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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.