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Finding the Fourth Proportional to 19,248.75, 28,884.65 and 8,304.75

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Solution

The fourth proportional to 19,248.75, 28,884.65 and 8,304.75 is: 12,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.75 : 28,884.65 = 8,304.75 : x
  2. Step 2: Convert to fraction form
    19,248.75/28,884.65 = 8,304.75/x
  3. Step 3: Cross multiply
    19,248.75x = 28,884.65 × 8,304.75
  4. Step 4: Simplify right side
    19,248.75x = 239,879,755.56
  5. Step 5: Solve for x
    x = 239,879,755.56/19,248.75
  6. Step 6: Final answer
    x = 12,462.10

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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.