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Finding the Fourth Proportional to 40,615.83, 60,934.12 and 15,649.19

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Solution

The fourth proportional to 40,615.83, 60,934.12 and 15,649.19 is: 23,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,615.83 : 60,934.12 = 15,649.19 : x
  2. Step 2: Convert to fraction form
    40,615.83/60,934.12 = 15,649.19/x
  3. Step 3: Cross multiply
    40,615.83x = 60,934.12 × 15,649.19
  4. Step 4: Simplify right side
    40,615.83x = 953,569,621.36
  5. Step 5: Solve for x
    x = 953,569,621.36/40,615.83
  6. Step 6: Final answer
    x = 23,477.78

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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.