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Finding the Fourth Proportional to 70,425.59, 97,189.68 and 38,594.21

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Solution

The fourth proportional to 70,425.59, 97,189.68 and 38,594.21 is: 53,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,425.59 : 97,189.68 = 38,594.21 : x
  2. Step 2: Convert to fraction form
    70,425.59/97,189.68 = 38,594.21/x
  3. Step 3: Cross multiply
    70,425.59x = 97,189.68 × 38,594.21
  4. Step 4: Simplify right side
    70,425.59x = 3,750,958,433.80
  5. Step 5: Solve for x
    x = 3,750,958,433.80/70,425.59
  6. Step 6: Final answer
    x = 53,261.30

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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.