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Finding the Fourth Proportional to 68,715.36, 94,810.80 and 41,857.44

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Solution

The fourth proportional to 68,715.36, 94,810.80 and 41,857.44 is: 57,753.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.36 : 94,810.80 = 41,857.44 : x
  2. Step 2: Convert to fraction form
    68,715.36/94,810.80 = 41,857.44/x
  3. Step 3: Cross multiply
    68,715.36x = 94,810.80 × 41,857.44
  4. Step 4: Simplify right side
    68,715.36x = 3,968,537,372.35
  5. Step 5: Solve for x
    x = 3,968,537,372.35/68,715.36
  6. Step 6: Final answer
    x = 57,753.28

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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.