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Finding the Fourth Proportional to 70,574.36, 97,392.72 and 38,308.97

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Solution

The fourth proportional to 70,574.36, 97,392.72 and 38,308.97 is: 52,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,574.36 : 97,392.72 = 38,308.97 : x
  2. Step 2: Convert to fraction form
    70,574.36/97,392.72 = 38,308.97/x
  3. Step 3: Cross multiply
    70,574.36x = 97,392.72 × 38,308.97
  4. Step 4: Simplify right side
    70,574.36x = 3,731,014,301.73
  5. Step 5: Solve for x
    x = 3,731,014,301.73/70,574.36
  6. Step 6: Final answer
    x = 52,866.43

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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.