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Finding the Fourth Proportional to 68,511, 94,533.08 and 38,286.66

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Solution

The fourth proportional to 68,511, 94,533.08 and 38,286.66 is: 52,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511 : 94,533.08 = 38,286.66 : x
  2. Step 2: Convert to fraction form
    68,511/94,533.08 = 38,286.66/x
  3. Step 3: Cross multiply
    68,511x = 94,533.08 × 38,286.66
  4. Step 4: Simplify right side
    68,511x = 3,619,355,892.71
  5. Step 5: Solve for x
    x = 3,619,355,892.71/68,511
  6. Step 6: Final answer
    x = 52,828.83

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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.