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Finding the Fourth Proportional to 68,460.80, 94,472.51 and 38,240.10

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Solution

The fourth proportional to 68,460.80, 94,472.51 and 38,240.10 is: 52,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,460.80 : 94,472.51 = 38,240.10 : x
  2. Step 2: Convert to fraction form
    68,460.80/94,472.51 = 38,240.10/x
  3. Step 3: Cross multiply
    68,460.80x = 94,472.51 × 38,240.10
  4. Step 4: Simplify right side
    68,460.80x = 3,612,638,229.65
  5. Step 5: Solve for x
    x = 3,612,638,229.65/68,460.80
  6. Step 6: Final answer
    x = 52,769.44

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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.