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Finding the Fourth Proportional to 70,112.56, 96,754.60 and 38,281.36

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Solution

The fourth proportional to 70,112.56, 96,754.60 and 38,281.36 is: 52,827.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,112.56 : 96,754.60 = 38,281.36 : x
  2. Step 2: Convert to fraction form
    70,112.56/96,754.60 = 38,281.36/x
  3. Step 3: Cross multiply
    70,112.56x = 96,754.60 × 38,281.36
  4. Step 4: Simplify right side
    70,112.56x = 3,703,897,674.26
  5. Step 5: Solve for x
    x = 3,703,897,674.26/70,112.56
  6. Step 6: Final answer
    x = 52,827.88

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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.