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Finding the Fourth Proportional to 64,897.92, 89,538.15 and 36,212.94

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Solution

The fourth proportional to 64,897.92, 89,538.15 and 36,212.94 is: 49,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.92 : 89,538.15 = 36,212.94 : x
  2. Step 2: Convert to fraction form
    64,897.92/89,538.15 = 36,212.94/x
  3. Step 3: Cross multiply
    64,897.92x = 89,538.15 × 36,212.94
  4. Step 4: Simplify right side
    64,897.92x = 3,242,439,653.66
  5. Step 5: Solve for x
    x = 3,242,439,653.66/64,897.92
  6. Step 6: Final answer
    x = 49,962.15

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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.