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Finding the Fourth Proportional to 44,135.66, 66,207 and 12,545.30

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Solution

The fourth proportional to 44,135.66, 66,207 and 12,545.30 is: 18,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,135.66 : 66,207 = 12,545.30 : x
  2. Step 2: Convert to fraction form
    44,135.66/66,207 = 12,545.30/x
  3. Step 3: Cross multiply
    44,135.66x = 66,207 × 12,545.30
  4. Step 4: Simplify right side
    44,135.66x = 830,586,677.10
  5. Step 5: Solve for x
    x = 830,586,677.10/44,135.66
  6. Step 6: Final answer
    x = 18,818.95

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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.