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Finding the Fourth Proportional to 52,888.55, 72,990.92 and 29,019.87

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Solution

The fourth proportional to 52,888.55, 72,990.92 and 29,019.87 is: 40,050.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,888.55 : 72,990.92 = 29,019.87 : x
  2. Step 2: Convert to fraction form
    52,888.55/72,990.92 = 29,019.87/x
  3. Step 3: Cross multiply
    52,888.55x = 72,990.92 × 29,019.87
  4. Step 4: Simplify right side
    52,888.55x = 2,118,187,082.13
  5. Step 5: Solve for x
    x = 2,118,187,082.13/52,888.55
  6. Step 6: Final answer
    x = 40,050.02

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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.