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Finding the Fourth Proportional to 64,967.63, 89,655.33 and 35,159.63

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Solution

The fourth proportional to 64,967.63, 89,655.33 and 35,159.63 is: 48,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.63 : 89,655.33 = 35,159.63 : x
  2. Step 2: Convert to fraction form
    64,967.63/89,655.33 = 35,159.63/x
  3. Step 3: Cross multiply
    64,967.63x = 89,655.33 × 35,159.63
  4. Step 4: Simplify right side
    64,967.63x = 3,152,247,716.13
  5. Step 5: Solve for x
    x = 3,152,247,716.13/64,967.63
  6. Step 6: Final answer
    x = 48,520.29

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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.