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Finding the Fourth Proportional to 70,601.50, 105,879.81 and 23,205.65

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Solution

The fourth proportional to 70,601.50, 105,879.81 and 23,205.65 is: 34,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,601.50 : 105,879.81 = 23,205.65 : x
  2. Step 2: Convert to fraction form
    70,601.50/105,879.81 = 23,205.65/x
  3. Step 3: Cross multiply
    70,601.50x = 105,879.81 × 23,205.65
  4. Step 4: Simplify right side
    70,601.50x = 2,457,009,812.93
  5. Step 5: Solve for x
    x = 2,457,009,812.93/70,601.50
  6. Step 6: Final answer
    x = 34,801.10

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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.