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Finding the Fourth Proportional to 64,656.26, 89,269.56 and 47,662.46

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Solution

The fourth proportional to 64,656.26, 89,269.56 and 47,662.46 is: 65,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656.26 : 89,269.56 = 47,662.46 : x
  2. Step 2: Convert to fraction form
    64,656.26/89,269.56 = 47,662.46/x
  3. Step 3: Cross multiply
    64,656.26x = 89,269.56 × 47,662.46
  4. Step 4: Simplify right side
    64,656.26x = 4,254,806,832.72
  5. Step 5: Solve for x
    x = 4,254,806,832.72/64,656.26
  6. Step 6: Final answer
    x = 65,806.57

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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.