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Finding the Fourth Proportional to 70,409.25, 105,613.88 and 23,662.13

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Solution

The fourth proportional to 70,409.25, 105,613.88 and 23,662.13 is: 35,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,409.25 : 105,613.88 = 23,662.13 : x
  2. Step 2: Convert to fraction form
    70,409.25/105,613.88 = 23,662.13/x
  3. Step 3: Cross multiply
    70,409.25x = 105,613.88 × 23,662.13
  4. Step 4: Simplify right side
    70,409.25x = 2,499,048,711.98
  5. Step 5: Solve for x
    x = 2,499,048,711.98/70,409.25
  6. Step 6: Final answer
    x = 35,493.19

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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.