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Finding the Fourth Proportional to 19,415.16, 29,119.92 and 9,551.80

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Solution

The fourth proportional to 19,415.16, 29,119.92 and 9,551.80 is: 14,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.16 : 29,119.92 = 9,551.80 : x
  2. Step 2: Convert to fraction form
    19,415.16/29,119.92 = 9,551.80/x
  3. Step 3: Cross multiply
    19,415.16x = 29,119.92 × 9,551.80
  4. Step 4: Simplify right side
    19,415.16x = 278,147,651.86
  5. Step 5: Solve for x
    x = 278,147,651.86/19,415.16
  6. Step 6: Final answer
    x = 14,326.31

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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.