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Finding the Fourth Proportional to 52,832.32, 72,910.47 and 28,958.99

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Solution

The fourth proportional to 52,832.32, 72,910.47 and 28,958.99 is: 39,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,832.32 : 72,910.47 = 28,958.99 : x
  2. Step 2: Convert to fraction form
    52,832.32/72,910.47 = 28,958.99/x
  3. Step 3: Cross multiply
    52,832.32x = 72,910.47 × 28,958.99
  4. Step 4: Simplify right side
    52,832.32x = 2,111,413,571.63
  5. Step 5: Solve for x
    x = 2,111,413,571.63/52,832.32
  6. Step 6: Final answer
    x = 39,964.43

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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.