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Finding the Fourth Proportional to 19,584.29, 29,380.08 and 8,488.91

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Solution

The fourth proportional to 19,584.29, 29,380.08 and 8,488.91 is: 12,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,584.29 : 29,380.08 = 8,488.91 : x
  2. Step 2: Convert to fraction form
    19,584.29/29,380.08 = 8,488.91/x
  3. Step 3: Cross multiply
    19,584.29x = 29,380.08 × 8,488.91
  4. Step 4: Simplify right side
    19,584.29x = 249,404,854.91
  5. Step 5: Solve for x
    x = 249,404,854.91/19,584.29
  6. Step 6: Final answer
    x = 12,734.94

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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.