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Finding the Fourth Proportional to 70,258.74, 96,955.86 and 38,426.96

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Solution

The fourth proportional to 70,258.74, 96,955.86 and 38,426.96 is: 53,028.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,258.74 : 96,955.86 = 38,426.96 : x
  2. Step 2: Convert to fraction form
    70,258.74/96,955.86 = 38,426.96/x
  3. Step 3: Cross multiply
    70,258.74x = 96,955.86 × 38,426.96
  4. Step 4: Simplify right side
    70,258.74x = 3,725,718,687.02
  5. Step 5: Solve for x
    x = 3,725,718,687.02/70,258.74
  6. Step 6: Final answer
    x = 53,028.54

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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.