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Finding the Fourth Proportional to 64,531.04, 89,047.76 and 36,231.26

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Solution

The fourth proportional to 64,531.04, 89,047.76 and 36,231.26 is: 49,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,531.04 : 89,047.76 = 36,231.26 : x
  2. Step 2: Convert to fraction form
    64,531.04/89,047.76 = 36,231.26/x
  3. Step 3: Cross multiply
    64,531.04x = 89,047.76 × 36,231.26
  4. Step 4: Simplify right side
    64,531.04x = 3,226,312,544.98
  5. Step 5: Solve for x
    x = 3,226,312,544.98/64,531.04
  6. Step 6: Final answer
    x = 49,996.29

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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.