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Finding the Fourth Proportional to 52,893.59, 72,990.74 and 29,019.77

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Solution

The fourth proportional to 52,893.59, 72,990.74 and 29,019.77 is: 40,045.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,893.59 : 72,990.74 = 29,019.77 : x
  2. Step 2: Convert to fraction form
    52,893.59/72,990.74 = 29,019.77/x
  3. Step 3: Cross multiply
    52,893.59x = 72,990.74 × 29,019.77
  4. Step 4: Simplify right side
    52,893.59x = 2,118,174,341.83
  5. Step 5: Solve for x
    x = 2,118,174,341.83/52,893.59
  6. Step 6: Final answer
    x = 40,045.96

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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.