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Finding the Fourth Proportional to 72,654.86, 108,937.64 and 25,258.93

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Solution

The fourth proportional to 72,654.86, 108,937.64 and 25,258.93 is: 37,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654.86 : 108,937.64 = 25,258.93 : x
  2. Step 2: Convert to fraction form
    72,654.86/108,937.64 = 25,258.93/x
  3. Step 3: Cross multiply
    72,654.86x = 108,937.64 × 25,258.93
  4. Step 4: Simplify right side
    72,654.86x = 2,751,648,218.19
  5. Step 5: Solve for x
    x = 2,751,648,218.19/72,654.86
  6. Step 6: Final answer
    x = 37,872.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.