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Finding the Fourth Proportional to 86,662.76, 129,998.78 and 24,338.12

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Solution

The fourth proportional to 86,662.76, 129,998.78 and 24,338.12 is: 36,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,662.76 : 129,998.78 = 24,338.12 : x
  2. Step 2: Convert to fraction form
    86,662.76/129,998.78 = 24,338.12/x
  3. Step 3: Cross multiply
    86,662.76x = 129,998.78 × 24,338.12
  4. Step 4: Simplify right side
    86,662.76x = 3,163,925,907.49
  5. Step 5: Solve for x
    x = 3,163,925,907.49/86,662.76
  6. Step 6: Final answer
    x = 36,508.48

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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.