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Finding the Fourth Proportional to 52,892.48, 72,994.94 and 29,019.20

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Solution

The fourth proportional to 52,892.48, 72,994.94 and 29,019.20 is: 40,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,892.48 : 72,994.94 = 29,019.20 : x
  2. Step 2: Convert to fraction form
    52,892.48/72,994.94 = 29,019.20/x
  3. Step 3: Cross multiply
    52,892.48x = 72,994.94 × 29,019.20
  4. Step 4: Simplify right side
    52,892.48x = 2,118,254,762.85
  5. Step 5: Solve for x
    x = 2,118,254,762.85/52,892.48
  6. Step 6: Final answer
    x = 40,048.32

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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.