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Finding the Fourth Proportional to 70,578.99, 105,846.18 and 23,186.30

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Solution

The fourth proportional to 70,578.99, 105,846.18 and 23,186.30 is: 34,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,578.99 : 105,846.18 = 23,186.30 : x
  2. Step 2: Convert to fraction form
    70,578.99/105,846.18 = 23,186.30/x
  3. Step 3: Cross multiply
    70,578.99x = 105,846.18 × 23,186.30
  4. Step 4: Simplify right side
    70,578.99x = 2,454,181,283.33
  5. Step 5: Solve for x
    x = 2,454,181,283.33/70,578.99
  6. Step 6: Final answer
    x = 34,772.12

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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.