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Finding the Fourth Proportional to 34,485.90, 51,732.90 and 12,302.43

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Solution

The fourth proportional to 34,485.90, 51,732.90 and 12,302.43 is: 18,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,485.90 : 51,732.90 = 12,302.43 : x
  2. Step 2: Convert to fraction form
    34,485.90/51,732.90 = 12,302.43/x
  3. Step 3: Cross multiply
    34,485.90x = 51,732.90 × 12,302.43
  4. Step 4: Simplify right side
    34,485.90x = 636,440,380.95
  5. Step 5: Solve for x
    x = 636,440,380.95/34,485.90
  6. Step 6: Final answer
    x = 18,455.09

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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.