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Finding the Fourth Proportional to 70,458.89, 97,230.69 and 38,627.09

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Solution

The fourth proportional to 70,458.89, 97,230.69 and 38,627.09 is: 53,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.89 : 97,230.69 = 38,627.09 : x
  2. Step 2: Convert to fraction form
    70,458.89/97,230.69 = 38,627.09/x
  3. Step 3: Cross multiply
    70,458.89x = 97,230.69 × 38,627.09
  4. Step 4: Simplify right side
    70,458.89x = 3,755,738,613.39
  5. Step 5: Solve for x
    x = 3,755,738,613.39/70,458.89
  6. Step 6: Final answer
    x = 53,303.97

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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.