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Finding the Fourth Proportional to 70,098.60, 96,736.20 and 38,268.02

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Solution

The fourth proportional to 70,098.60, 96,736.20 and 38,268.02 is: 52,809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,098.60 : 96,736.20 = 38,268.02 : x
  2. Step 2: Convert to fraction form
    70,098.60/96,736.20 = 38,268.02/x
  3. Step 3: Cross multiply
    70,098.60x = 96,736.20 × 38,268.02
  4. Step 4: Simplify right side
    70,098.60x = 3,701,902,836.32
  5. Step 5: Solve for x
    x = 3,701,902,836.32/70,098.60
  6. Step 6: Final answer
    x = 52,809.94

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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.