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Finding the Fourth Proportional to 64,573.79, 89,107.51 and 35,891.59

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Solution

The fourth proportional to 64,573.79, 89,107.51 and 35,891.59 is: 49,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,573.79 : 89,107.51 = 35,891.59 : x
  2. Step 2: Convert to fraction form
    64,573.79/89,107.51 = 35,891.59/x
  3. Step 3: Cross multiply
    64,573.79x = 89,107.51 × 35,891.59
  4. Step 4: Simplify right side
    64,573.79x = 3,198,210,214.84
  5. Step 5: Solve for x
    x = 3,198,210,214.84/64,573.79
  6. Step 6: Final answer
    x = 49,527.99

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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.