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Finding the Fourth Proportional to 19,662.94, 29,451.48 and 15,947.88

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Solution

The fourth proportional to 19,662.94, 29,451.48 and 15,947.88 is: 23,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.94 : 29,451.48 = 15,947.88 : x
  2. Step 2: Convert to fraction form
    19,662.94/29,451.48 = 15,947.88/x
  3. Step 3: Cross multiply
    19,662.94x = 29,451.48 × 15,947.88
  4. Step 4: Simplify right side
    19,662.94x = 469,688,668.86
  5. Step 5: Solve for x
    x = 469,688,668.86/19,662.94
  6. Step 6: Final answer
    x = 23,887.00

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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.