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Finding the Fourth Proportional to 70,485.32, 105,737.76 and 23,751.56

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Solution

The fourth proportional to 70,485.32, 105,737.76 and 23,751.56 is: 35,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.32 : 105,737.76 = 23,751.56 : x
  2. Step 2: Convert to fraction form
    70,485.32/105,737.76 = 23,751.56/x
  3. Step 3: Cross multiply
    70,485.32x = 105,737.76 × 23,751.56
  4. Step 4: Simplify right side
    70,485.32x = 2,511,436,750.91
  5. Step 5: Solve for x
    x = 2,511,436,750.91/70,485.32
  6. Step 6: Final answer
    x = 35,630.64

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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.