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Finding the Fourth Proportional to 64,399.86, 96,599.70 and 17,656.38

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Solution

The fourth proportional to 64,399.86, 96,599.70 and 17,656.38 is: 26,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,399.86 : 96,599.70 = 17,656.38 : x
  2. Step 2: Convert to fraction form
    64,399.86/96,599.70 = 17,656.38/x
  3. Step 3: Cross multiply
    64,399.86x = 96,599.70 × 17,656.38
  4. Step 4: Simplify right side
    64,399.86x = 1,705,601,011.09
  5. Step 5: Solve for x
    x = 1,705,601,011.09/64,399.86
  6. Step 6: Final answer
    x = 26,484.55

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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.