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Finding the Fourth Proportional to 53,910.05, 80,865.08 and 48,726.05

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Solution

The fourth proportional to 53,910.05, 80,865.08 and 48,726.05 is: 73,089.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.05 : 80,865.08 = 48,726.05 : x
  2. Step 2: Convert to fraction form
    53,910.05/80,865.08 = 48,726.05/x
  3. Step 3: Cross multiply
    53,910.05x = 80,865.08 × 48,726.05
  4. Step 4: Simplify right side
    53,910.05x = 3,940,235,687.70
  5. Step 5: Solve for x
    x = 3,940,235,687.70/53,910.05
  6. Step 6: Final answer
    x = 73,089.08

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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.