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Finding the Fourth Proportional to 25,294.61, 37,923.17 and 12,134.45

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Solution

The fourth proportional to 25,294.61, 37,923.17 and 12,134.45 is: 18,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,294.61 : 37,923.17 = 12,134.45 : x
  2. Step 2: Convert to fraction form
    25,294.61/37,923.17 = 12,134.45/x
  3. Step 3: Cross multiply
    25,294.61x = 37,923.17 × 12,134.45
  4. Step 4: Simplify right side
    25,294.61x = 460,176,559.92
  5. Step 5: Solve for x
    x = 460,176,559.92/25,294.61
  6. Step 6: Final answer
    x = 18,192.68

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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.