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Finding the Fourth Proportional to 64,844.86, 89,480.54 and 36,557.50

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Solution

The fourth proportional to 64,844.86, 89,480.54 and 36,557.50 is: 50,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,844.86 : 89,480.54 = 36,557.50 : x
  2. Step 2: Convert to fraction form
    64,844.86/89,480.54 = 36,557.50/x
  3. Step 3: Cross multiply
    64,844.86x = 89,480.54 × 36,557.50
  4. Step 4: Simplify right side
    64,844.86x = 3,271,184,841.05
  5. Step 5: Solve for x
    x = 3,271,184,841.05/64,844.86
  6. Step 6: Final answer
    x = 50,446.32

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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.