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Finding the Fourth Proportional to 64,783.26, 89,400.51 and 36,498.06

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Solution

The fourth proportional to 64,783.26, 89,400.51 and 36,498.06 is: 50,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,783.26 : 89,400.51 = 36,498.06 : x
  2. Step 2: Convert to fraction form
    64,783.26/89,400.51 = 36,498.06/x
  3. Step 3: Cross multiply
    64,783.26x = 89,400.51 × 36,498.06
  4. Step 4: Simplify right side
    64,783.26x = 3,262,945,178.01
  5. Step 5: Solve for x
    x = 3,262,945,178.01/64,783.26
  6. Step 6: Final answer
    x = 50,367.10

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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.