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Finding the Fourth Proportional to 72,958.92, 109,438.38 and 17,554.92

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Solution

The fourth proportional to 72,958.92, 109,438.38 and 17,554.92 is: 26,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,958.92 : 109,438.38 = 17,554.92 : x
  2. Step 2: Convert to fraction form
    72,958.92/109,438.38 = 17,554.92/x
  3. Step 3: Cross multiply
    72,958.92x = 109,438.38 × 17,554.92
  4. Step 4: Simplify right side
    72,958.92x = 1,921,182,005.83
  5. Step 5: Solve for x
    x = 1,921,182,005.83/72,958.92
  6. Step 6: Final answer
    x = 26,332.38

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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.