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Finding the Fourth Proportional to 52,052.99, 78,079.23 and 12,610.11

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Solution

The fourth proportional to 52,052.99, 78,079.23 and 12,610.11 is: 18,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,052.99 : 78,079.23 = 12,610.11 : x
  2. Step 2: Convert to fraction form
    52,052.99/78,079.23 = 12,610.11/x
  3. Step 3: Cross multiply
    52,052.99x = 78,079.23 × 12,610.11
  4. Step 4: Simplify right side
    52,052.99x = 984,587,679.02
  5. Step 5: Solve for x
    x = 984,587,679.02/52,052.99
  6. Step 6: Final answer
    x = 18,915.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.