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Finding the Fourth Proportional to 60,915.94, 91,383 and 18,792.52

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Solution

The fourth proportional to 60,915.94, 91,383 and 18,792.52 is: 28,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,915.94 : 91,383 = 18,792.52 : x
  2. Step 2: Convert to fraction form
    60,915.94/91,383 = 18,792.52/x
  3. Step 3: Cross multiply
    60,915.94x = 91,383 × 18,792.52
  4. Step 4: Simplify right side
    60,915.94x = 1,717,316,855.16
  5. Step 5: Solve for x
    x = 1,717,316,855.16/60,915.94
  6. Step 6: Final answer
    x = 28,191.58

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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.