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Finding the Fourth Proportional to 60,606.14, 90,919.06 and 17,915.90

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Solution

The fourth proportional to 60,606.14, 90,919.06 and 17,915.90 is: 26,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,606.14 : 90,919.06 = 17,915.90 : x
  2. Step 2: Convert to fraction form
    60,606.14/90,919.06 = 17,915.90/x
  3. Step 3: Cross multiply
    60,606.14x = 90,919.06 × 17,915.90
  4. Step 4: Simplify right side
    60,606.14x = 1,628,896,787.05
  5. Step 5: Solve for x
    x = 1,628,896,787.05/60,606.14
  6. Step 6: Final answer
    x = 26,876.76

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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.