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Finding the Fourth Proportional to 52,763.04, 72,810 and 28,884.96

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Solution

The fourth proportional to 52,763.04, 72,810 and 28,884.96 is: 39,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,763.04 : 72,810 = 28,884.96 : x
  2. Step 2: Convert to fraction form
    52,763.04/72,810 = 28,884.96/x
  3. Step 3: Cross multiply
    52,763.04x = 72,810 × 28,884.96
  4. Step 4: Simplify right side
    52,763.04x = 2,103,113,937.60
  5. Step 5: Solve for x
    x = 2,103,113,937.60/52,763.04
  6. Step 6: Final answer
    x = 39,859.61

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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.