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Finding the Fourth Proportional to 52,833.78, 72,910.20 and 28,960.41

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Solution

The fourth proportional to 52,833.78, 72,910.20 and 28,960.41 is: 39,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,833.78 : 72,910.20 = 28,960.41 : x
  2. Step 2: Convert to fraction form
    52,833.78/72,910.20 = 28,960.41/x
  3. Step 3: Cross multiply
    52,833.78x = 72,910.20 × 28,960.41
  4. Step 4: Simplify right side
    52,833.78x = 2,111,509,285.18
  5. Step 5: Solve for x
    x = 2,111,509,285.18/52,833.78
  6. Step 6: Final answer
    x = 39,965.14

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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.