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Finding the Fourth Proportional to 52,866.50, 72,957.87 and 28,994.04

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Solution

The fourth proportional to 52,866.50, 72,957.87 and 28,994.04 is: 40,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,866.50 : 72,957.87 = 28,994.04 : x
  2. Step 2: Convert to fraction form
    52,866.50/72,957.87 = 28,994.04/x
  3. Step 3: Cross multiply
    52,866.50x = 72,957.87 × 28,994.04
  4. Step 4: Simplify right side
    52,866.50x = 2,115,343,401.09
  5. Step 5: Solve for x
    x = 2,115,343,401.09/52,866.50
  6. Step 6: Final answer
    x = 40,012.93

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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.