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Finding the Fourth Proportional to 70,380.88, 105,580.92 and 23,647.12

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Solution

The fourth proportional to 70,380.88, 105,580.92 and 23,647.12 is: 35,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,380.88 : 105,580.92 = 23,647.12 : x
  2. Step 2: Convert to fraction form
    70,380.88/105,580.92 = 23,647.12/x
  3. Step 3: Cross multiply
    70,380.88x = 105,580.92 × 23,647.12
  4. Step 4: Simplify right side
    70,380.88x = 2,496,684,684.95
  5. Step 5: Solve for x
    x = 2,496,684,684.95/70,380.88
  6. Step 6: Final answer
    x = 35,473.91

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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.