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Finding the Fourth Proportional to 68,491.32, 94,522.38 and 38,276.76

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Solution

The fourth proportional to 68,491.32, 94,522.38 and 38,276.76 is: 52,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,491.32 : 94,522.38 = 38,276.76 : x
  2. Step 2: Convert to fraction form
    68,491.32/94,522.38 = 38,276.76/x
  3. Step 3: Cross multiply
    68,491.32x = 94,522.38 × 38,276.76
  4. Step 4: Simplify right side
    68,491.32x = 3,618,010,453.89
  5. Step 5: Solve for x
    x = 3,618,010,453.89/68,491.32
  6. Step 6: Final answer
    x = 52,824.36

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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.