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Finding the Fourth Proportional to 19,768.94, 29,656.50 and 8,527.47

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Solution

The fourth proportional to 19,768.94, 29,656.50 and 8,527.47 is: 12,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.94 : 29,656.50 = 8,527.47 : x
  2. Step 2: Convert to fraction form
    19,768.94/29,656.50 = 8,527.47/x
  3. Step 3: Cross multiply
    19,768.94x = 29,656.50 × 8,527.47
  4. Step 4: Simplify right side
    19,768.94x = 252,894,914.06
  5. Step 5: Solve for x
    x = 252,894,914.06/19,768.94
  6. Step 6: Final answer
    x = 12,792.54

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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.