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Finding the Fourth Proportional to 64,971.95, 89,660.32 and 36,292.01

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Solution

The fourth proportional to 64,971.95, 89,660.32 and 36,292.01 is: 50,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,971.95 : 89,660.32 = 36,292.01 : x
  2. Step 2: Convert to fraction form
    64,971.95/89,660.32 = 36,292.01/x
  3. Step 3: Cross multiply
    64,971.95x = 89,660.32 × 36,292.01
  4. Step 4: Simplify right side
    64,971.95x = 3,253,953,230.04
  5. Step 5: Solve for x
    x = 3,253,953,230.04/64,971.95
  6. Step 6: Final answer
    x = 50,082.43

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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.