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Finding the Fourth Proportional to 19,573.20, 29,359.80 and 14,965.20

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Solution

The fourth proportional to 19,573.20, 29,359.80 and 14,965.20 is: 22,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,573.20 : 29,359.80 = 14,965.20 : x
  2. Step 2: Convert to fraction form
    19,573.20/29,359.80 = 14,965.20/x
  3. Step 3: Cross multiply
    19,573.20x = 29,359.80 × 14,965.20
  4. Step 4: Simplify right side
    19,573.20x = 439,375,278.96
  5. Step 5: Solve for x
    x = 439,375,278.96/19,573.20
  6. Step 6: Final answer
    x = 22,447.80

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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.