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Finding the Fourth Proportional to 64,919.37, 97,379.06 and 15,671.37

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Solution

The fourth proportional to 64,919.37, 97,379.06 and 15,671.37 is: 23,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,919.37 : 97,379.06 = 15,671.37 : x
  2. Step 2: Convert to fraction form
    64,919.37/97,379.06 = 15,671.37/x
  3. Step 3: Cross multiply
    64,919.37x = 97,379.06 × 15,671.37
  4. Step 4: Simplify right side
    64,919.37x = 1,526,063,279.51
  5. Step 5: Solve for x
    x = 1,526,063,279.51/64,919.37
  6. Step 6: Final answer
    x = 23,507.06

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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.