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Finding the Fourth Proportional to 70,405.39, 105,606.25 and 23,658.26

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Solution

The fourth proportional to 70,405.39, 105,606.25 and 23,658.26 is: 35,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,405.39 : 105,606.25 = 23,658.26 : x
  2. Step 2: Convert to fraction form
    70,405.39/105,606.25 = 23,658.26/x
  3. Step 3: Cross multiply
    70,405.39x = 105,606.25 × 23,658.26
  4. Step 4: Simplify right side
    70,405.39x = 2,498,460,120.13
  5. Step 5: Solve for x
    x = 2,498,460,120.13/70,405.39
  6. Step 6: Final answer
    x = 35,486.77

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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.