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Finding the Fourth Proportional to 70,622.03, 97,458.98 and 38,791.64

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Solution

The fourth proportional to 70,622.03, 97,458.98 and 38,791.64 is: 53,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,622.03 : 97,458.98 = 38,791.64 : x
  2. Step 2: Convert to fraction form
    70,622.03/97,458.98 = 38,791.64/x
  3. Step 3: Cross multiply
    70,622.03x = 97,458.98 × 38,791.64
  4. Step 4: Simplify right side
    70,622.03x = 3,780,592,985.67
  5. Step 5: Solve for x
    x = 3,780,592,985.67/70,622.03
  6. Step 6: Final answer
    x = 53,532.78

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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.