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Finding the Fourth Proportional to 68,792.92, 94,935.27 and 40,111.80

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Solution

The fourth proportional to 68,792.92, 94,935.27 and 40,111.80 is: 55,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,792.92 : 94,935.27 = 40,111.80 : x
  2. Step 2: Convert to fraction form
    68,792.92/94,935.27 = 40,111.80/x
  3. Step 3: Cross multiply
    68,792.92x = 94,935.27 × 40,111.80
  4. Step 4: Simplify right side
    68,792.92x = 3,808,024,563.19
  5. Step 5: Solve for x
    x = 3,808,024,563.19/68,792.92
  6. Step 6: Final answer
    x = 55,354.89

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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.