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Finding the Fourth Proportional to 64,394.64, 96,587.28 and 17,643.84

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Solution

The fourth proportional to 64,394.64, 96,587.28 and 17,643.84 is: 26,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,394.64 : 96,587.28 = 17,643.84 : x
  2. Step 2: Convert to fraction form
    64,394.64/96,587.28 = 17,643.84/x
  3. Step 3: Cross multiply
    64,394.64x = 96,587.28 × 17,643.84
  4. Step 4: Simplify right side
    64,394.64x = 1,704,170,514.36
  5. Step 5: Solve for x
    x = 1,704,170,514.36/64,394.64
  6. Step 6: Final answer
    x = 26,464.48

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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.