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Finding the Fourth Proportional to 9,813.61, 14,718.19 and 2,793.48

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Solution

The fourth proportional to 9,813.61, 14,718.19 and 2,793.48 is: 4,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.61 : 14,718.19 = 2,793.48 : x
  2. Step 2: Convert to fraction form
    9,813.61/14,718.19 = 2,793.48/x
  3. Step 3: Cross multiply
    9,813.61x = 14,718.19 × 2,793.48
  4. Step 4: Simplify right side
    9,813.61x = 41,114,969.40
  5. Step 5: Solve for x
    x = 41,114,969.40/9,813.61
  6. Step 6: Final answer
    x = 4,189.59

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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.