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Finding the Fourth Proportional to 70,461.80, 97,236.76 and 38,630.84

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Solution

The fourth proportional to 70,461.80, 97,236.76 and 38,630.84 is: 53,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.80 : 97,236.76 = 38,630.84 : x
  2. Step 2: Convert to fraction form
    70,461.80/97,236.76 = 38,630.84/x
  3. Step 3: Cross multiply
    70,461.80x = 97,236.76 × 38,630.84
  4. Step 4: Simplify right side
    70,461.80x = 3,756,337,717.68
  5. Step 5: Solve for x
    x = 3,756,337,717.68/70,461.80
  6. Step 6: Final answer
    x = 53,310.27

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Double scale
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Similar ratio
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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.