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Finding the Fourth Proportional to 64,474.80, 96,714.63 and 17,731.32

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Solution

The fourth proportional to 64,474.80, 96,714.63 and 17,731.32 is: 26,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,474.80 : 96,714.63 = 17,731.32 : x
  2. Step 2: Convert to fraction form
    64,474.80/96,714.63 = 17,731.32/x
  3. Step 3: Cross multiply
    64,474.80x = 96,714.63 × 17,731.32
  4. Step 4: Simplify right side
    64,474.80x = 1,714,878,053.21
  5. Step 5: Solve for x
    x = 1,714,878,053.21/64,474.80
  6. Step 6: Final answer
    x = 26,597.65

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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.