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Finding the Fourth Proportional to 52,620.84, 72,630 and 33,790.77

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Solution

The fourth proportional to 52,620.84, 72,630 and 33,790.77 is: 46,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,620.84 : 72,630 = 33,790.77 : x
  2. Step 2: Convert to fraction form
    52,620.84/72,630 = 33,790.77/x
  3. Step 3: Cross multiply
    52,620.84x = 72,630 × 33,790.77
  4. Step 4: Simplify right side
    52,620.84x = 2,454,223,625.10
  5. Step 5: Solve for x
    x = 2,454,223,625.10/52,620.84
  6. Step 6: Final answer
    x = 46,639.77

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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.