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Finding the Fourth Proportional to 70,409.96, 105,613.77 and 17,102.37

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Solution

The fourth proportional to 70,409.96, 105,613.77 and 17,102.37 is: 25,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,409.96 : 105,613.77 = 17,102.37 : x
  2. Step 2: Convert to fraction form
    70,409.96/105,613.77 = 17,102.37/x
  3. Step 3: Cross multiply
    70,409.96x = 105,613.77 × 17,102.37
  4. Step 4: Simplify right side
    70,409.96x = 1,806,245,771.63
  5. Step 5: Solve for x
    x = 1,806,245,771.63/70,409.96
  6. Step 6: Final answer
    x = 25,653.27

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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.