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Finding the Fourth Proportional to 19,751.98, 29,628.58 and 8,652.94

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Solution

The fourth proportional to 19,751.98, 29,628.58 and 8,652.94 is: 12,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.98 : 29,628.58 = 8,652.94 : x
  2. Step 2: Convert to fraction form
    19,751.98/29,628.58 = 8,652.94/x
  3. Step 3: Cross multiply
    19,751.98x = 29,628.58 × 8,652.94
  4. Step 4: Simplify right side
    19,751.98x = 256,374,325.03
  5. Step 5: Solve for x
    x = 256,374,325.03/19,751.98
  6. Step 6: Final answer
    x = 12,979.68

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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.