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Finding the Fourth Proportional to 70,446.58, 97,215.84 and 38,616.82

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Solution

The fourth proportional to 70,446.58, 97,215.84 and 38,616.82 is: 53,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,446.58 : 97,215.84 = 38,616.82 : x
  2. Step 2: Convert to fraction form
    70,446.58/97,215.84 = 38,616.82/x
  3. Step 3: Cross multiply
    70,446.58x = 97,215.84 × 38,616.82
  4. Step 4: Simplify right side
    70,446.58x = 3,754,166,594.43
  5. Step 5: Solve for x
    x = 3,754,166,594.43/70,446.58
  6. Step 6: Final answer
    x = 53,290.97

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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.