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Finding the Fourth Proportional to 64,992.24, 89,688.60 and 36,696.24

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Solution

The fourth proportional to 64,992.24, 89,688.60 and 36,696.24 is: 50,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,992.24 : 89,688.60 = 36,696.24 : x
  2. Step 2: Convert to fraction form
    64,992.24/89,688.60 = 36,696.24/x
  3. Step 3: Cross multiply
    64,992.24x = 89,688.60 × 36,696.24
  4. Step 4: Simplify right side
    64,992.24x = 3,291,234,390.86
  5. Step 5: Solve for x
    x = 3,291,234,390.86/64,992.24
  6. Step 6: Final answer
    x = 50,640.42

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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.