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Finding the Fourth Proportional to 19,504.81, 29,243.95 and 7,651.15

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Solution

The fourth proportional to 19,504.81, 29,243.95 and 7,651.15 is: 11,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,504.81 : 29,243.95 = 7,651.15 : x
  2. Step 2: Convert to fraction form
    19,504.81/29,243.95 = 7,651.15/x
  3. Step 3: Cross multiply
    19,504.81x = 29,243.95 × 7,651.15
  4. Step 4: Simplify right side
    19,504.81x = 223,749,848.04
  5. Step 5: Solve for x
    x = 223,749,848.04/19,504.81
  6. Step 6: Final answer
    x = 11,471.52

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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.