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Finding the Fourth Proportional to 64,656.98, 89,225.76 and 36,362.66

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Solution

The fourth proportional to 64,656.98, 89,225.76 and 36,362.66 is: 50,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656.98 : 89,225.76 = 36,362.66 : x
  2. Step 2: Convert to fraction form
    64,656.98/89,225.76 = 36,362.66/x
  3. Step 3: Cross multiply
    64,656.98x = 89,225.76 × 36,362.66
  4. Step 4: Simplify right side
    64,656.98x = 3,244,485,527.99
  5. Step 5: Solve for x
    x = 3,244,485,527.99/64,656.98
  6. Step 6: Final answer
    x = 50,179.98

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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.