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Finding the Fourth Proportional to 70,245.01, 96,824.32 and 54,904.83

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Solution

The fourth proportional to 70,245.01, 96,824.32 and 54,904.83 is: 75,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,245.01 : 96,824.32 = 54,904.83 : x
  2. Step 2: Convert to fraction form
    70,245.01/96,824.32 = 54,904.83/x
  3. Step 3: Cross multiply
    70,245.01x = 96,824.32 × 54,904.83
  4. Step 4: Simplify right side
    70,245.01x = 5,316,122,829.47
  5. Step 5: Solve for x
    x = 5,316,122,829.47/70,245.01
  6. Step 6: Final answer
    x = 75,679.72

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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.