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Finding the Fourth Proportional to 70,494.12, 97,283.24 and 38,661.12

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Solution

The fourth proportional to 70,494.12, 97,283.24 and 38,661.12 is: 53,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,494.12 : 97,283.24 = 38,661.12 : x
  2. Step 2: Convert to fraction form
    70,494.12/97,283.24 = 38,661.12/x
  3. Step 3: Cross multiply
    70,494.12x = 97,283.24 × 38,661.12
  4. Step 4: Simplify right side
    70,494.12x = 3,761,079,015.63
  5. Step 5: Solve for x
    x = 3,761,079,015.63/70,494.12
  6. Step 6: Final answer
    x = 53,353.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.