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Finding the Fourth Proportional to 64,653.76, 89,221.95 and 36,359.44

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Solution

The fourth proportional to 64,653.76, 89,221.95 and 36,359.44 is: 50,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,653.76 : 89,221.95 = 36,359.44 : x
  2. Step 2: Convert to fraction form
    64,653.76/89,221.95 = 36,359.44/x
  3. Step 3: Cross multiply
    64,653.76x = 89,221.95 × 36,359.44
  4. Step 4: Simplify right side
    64,653.76x = 3,244,060,137.71
  5. Step 5: Solve for x
    x = 3,244,060,137.71/64,653.76
  6. Step 6: Final answer
    x = 50,175.89

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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.