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Finding the Fourth Proportional to 64,985.96, 97,478.44 and 26,517.31

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Solution

The fourth proportional to 64,985.96, 97,478.44 and 26,517.31 is: 39,775.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985.96 : 97,478.44 = 26,517.31 : x
  2. Step 2: Convert to fraction form
    64,985.96/97,478.44 = 26,517.31/x
  3. Step 3: Cross multiply
    64,985.96x = 97,478.44 × 26,517.31
  4. Step 4: Simplify right side
    64,985.96x = 2,584,866,011.80
  5. Step 5: Solve for x
    x = 2,584,866,011.80/64,985.96
  6. Step 6: Final answer
    x = 39,775.76

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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.