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Finding the Fourth Proportional to 19,546.50, 29,319.75 and 8,602.50

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Solution

The fourth proportional to 19,546.50, 29,319.75 and 8,602.50 is: 12,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,546.50 : 29,319.75 = 8,602.50 : x
  2. Step 2: Convert to fraction form
    19,546.50/29,319.75 = 8,602.50/x
  3. Step 3: Cross multiply
    19,546.50x = 29,319.75 × 8,602.50
  4. Step 4: Simplify right side
    19,546.50x = 252,223,149.38
  5. Step 5: Solve for x
    x = 252,223,149.38/19,546.50
  6. Step 6: Final answer
    x = 12,903.75

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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.