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Finding the Fourth Proportional to 40,513.80, 60,697.80 and 34,681.80

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Solution

The fourth proportional to 40,513.80, 60,697.80 and 34,681.80 is: 51,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,513.80 : 60,697.80 = 34,681.80 : x
  2. Step 2: Convert to fraction form
    40,513.80/60,697.80 = 34,681.80/x
  3. Step 3: Cross multiply
    40,513.80x = 60,697.80 × 34,681.80
  4. Step 4: Simplify right side
    40,513.80x = 2,105,108,960.04
  5. Step 5: Solve for x
    x = 2,105,108,960.04/40,513.80
  6. Step 6: Final answer
    x = 51,960.29

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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.