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Finding the Fourth Proportional to 19,766.28, 29,661.12 and 7,295.08

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Solution

The fourth proportional to 19,766.28, 29,661.12 and 7,295.08 is: 10,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.28 : 29,661.12 = 7,295.08 : x
  2. Step 2: Convert to fraction form
    19,766.28/29,661.12 = 7,295.08/x
  3. Step 3: Cross multiply
    19,766.28x = 29,661.12 × 7,295.08
  4. Step 4: Simplify right side
    19,766.28x = 216,380,243.29
  5. Step 5: Solve for x
    x = 216,380,243.29/19,766.28
  6. Step 6: Final answer
    x = 10,946.94

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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.