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Finding the Fourth Proportional to 64,886.12, 97,153.31 and 33,655.76

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Solution

The fourth proportional to 64,886.12, 97,153.31 and 33,655.76 is: 50,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.12 : 97,153.31 = 33,655.76 : x
  2. Step 2: Convert to fraction form
    64,886.12/97,153.31 = 33,655.76/x
  3. Step 3: Cross multiply
    64,886.12x = 97,153.31 × 33,655.76
  4. Step 4: Simplify right side
    64,886.12x = 3,269,768,316.29
  5. Step 5: Solve for x
    x = 3,269,768,316.29/64,886.12
  6. Step 6: Final answer
    x = 50,392.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.