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Finding the Fourth Proportional to 78,596.82, 117,913.67 and 26,006.30

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Solution

The fourth proportional to 78,596.82, 117,913.67 and 26,006.30 is: 39,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,596.82 : 117,913.67 = 26,006.30 : x
  2. Step 2: Convert to fraction form
    78,596.82/117,913.67 = 26,006.30/x
  3. Step 3: Cross multiply
    78,596.82x = 117,913.67 × 26,006.30
  4. Step 4: Simplify right side
    78,596.82x = 3,066,497,686.55
  5. Step 5: Solve for x
    x = 3,066,497,686.55/78,596.82
  6. Step 6: Final answer
    x = 39,015.55

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1.5x scale

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.