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Finding the Fourth Proportional to 19,367.88, 29,064.11 and 8,274.65

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Solution

The fourth proportional to 19,367.88, 29,064.11 and 8,274.65 is: 12,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.88 : 29,064.11 = 8,274.65 : x
  2. Step 2: Convert to fraction form
    19,367.88/29,064.11 = 8,274.65/x
  3. Step 3: Cross multiply
    19,367.88x = 29,064.11 × 8,274.65
  4. Step 4: Simplify right side
    19,367.88x = 240,495,151.12
  5. Step 5: Solve for x
    x = 240,495,151.12/19,367.88
  6. Step 6: Final answer
    x = 12,417.22

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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.