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Finding the Fourth Proportional to 70,305.12, 105,473.46 and 23,556.78

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Solution

The fourth proportional to 70,305.12, 105,473.46 and 23,556.78 is: 35,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,305.12 : 105,473.46 = 23,556.78 : x
  2. Step 2: Convert to fraction form
    70,305.12/105,473.46 = 23,556.78/x
  3. Step 3: Cross multiply
    70,305.12x = 105,473.46 × 23,556.78
  4. Step 4: Simplify right side
    70,305.12x = 2,484,615,093.06
  5. Step 5: Solve for x
    x = 2,484,615,093.06/70,305.12
  6. Step 6: Final answer
    x = 35,340.46

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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.