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Finding the Fourth Proportional to 40,706.49, 61,068.51 and 12,625.99

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Solution

The fourth proportional to 40,706.49, 61,068.51 and 12,625.99 is: 18,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,706.49 : 61,068.51 = 12,625.99 : x
  2. Step 2: Convert to fraction form
    40,706.49/61,068.51 = 12,625.99/x
  3. Step 3: Cross multiply
    40,706.49x = 61,068.51 × 12,625.99
  4. Step 4: Simplify right side
    40,706.49x = 771,050,243.90
  5. Step 5: Solve for x
    x = 771,050,243.90/40,706.49
  6. Step 6: Final answer
    x = 18,941.70

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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.