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Finding the Fourth Proportional to 64,572.09, 89,108.88 and 35,891.01

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Solution

The fourth proportional to 64,572.09, 89,108.88 and 35,891.01 is: 49,529.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,572.09 : 89,108.88 = 35,891.01 : x
  2. Step 2: Convert to fraction form
    64,572.09/89,108.88 = 35,891.01/x
  3. Step 3: Cross multiply
    64,572.09x = 89,108.88 × 35,891.01
  4. Step 4: Simplify right side
    64,572.09x = 3,198,207,568.58
  5. Step 5: Solve for x
    x = 3,198,207,568.58/64,572.09
  6. Step 6: Final answer
    x = 49,529.26

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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.