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Finding the Fourth Proportional to 40,706.19, 61,053.29 and 20,707.44

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Solution

The fourth proportional to 40,706.19, 61,053.29 and 20,707.44 is: 31,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,706.19 : 61,053.29 = 20,707.44 : x
  2. Step 2: Convert to fraction form
    40,706.19/61,053.29 = 20,707.44/x
  3. Step 3: Cross multiply
    40,706.19x = 61,053.29 × 20,707.44
  4. Step 4: Simplify right side
    40,706.19x = 1,264,257,235.94
  5. Step 5: Solve for x
    x = 1,264,257,235.94/40,706.19
  6. Step 6: Final answer
    x = 31,058.11

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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.