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Finding the Fourth Proportional to 45,606.59, 68,420.51 and 15,621.15

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Solution

The fourth proportional to 45,606.59, 68,420.51 and 15,621.15 is: 23,435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,606.59 : 68,420.51 = 15,621.15 : x
  2. Step 2: Convert to fraction form
    45,606.59/68,420.51 = 15,621.15/x
  3. Step 3: Cross multiply
    45,606.59x = 68,420.51 × 15,621.15
  4. Step 4: Simplify right side
    45,606.59x = 1,068,806,917.79
  5. Step 5: Solve for x
    x = 1,068,806,917.79/45,606.59
  6. Step 6: Final answer
    x = 23,435.36

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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.