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Finding the Fourth Proportional to 19,776.22, 29,666.91 and 7,304.98

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Solution

The fourth proportional to 19,776.22, 29,666.91 and 7,304.98 is: 10,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.22 : 29,666.91 = 7,304.98 : x
  2. Step 2: Convert to fraction form
    19,776.22/29,666.91 = 7,304.98/x
  3. Step 3: Cross multiply
    19,776.22x = 29,666.91 × 7,304.98
  4. Step 4: Simplify right side
    19,776.22x = 216,716,184.21
  5. Step 5: Solve for x
    x = 216,716,184.21/19,776.22
  6. Step 6: Final answer
    x = 10,958.42

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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.