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Finding the Fourth Proportional to 61,289.73, 91,937.70 and 16,915.50

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Solution

The fourth proportional to 61,289.73, 91,937.70 and 16,915.50 is: 25,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,289.73 : 91,937.70 = 16,915.50 : x
  2. Step 2: Convert to fraction form
    61,289.73/91,937.70 = 16,915.50/x
  3. Step 3: Cross multiply
    61,289.73x = 91,937.70 × 16,915.50
  4. Step 4: Simplify right side
    61,289.73x = 1,555,172,164.35
  5. Step 5: Solve for x
    x = 1,555,172,164.35/61,289.73
  6. Step 6: Final answer
    x = 25,374.11

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1.5x scale

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.