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Finding the Fourth Proportional to 9,888.81, 14,834.43 and 3,648.85

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Solution

The fourth proportional to 9,888.81, 14,834.43 and 3,648.85 is: 5,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.81 : 14,834.43 = 3,648.85 : x
  2. Step 2: Convert to fraction form
    9,888.81/14,834.43 = 3,648.85/x
  3. Step 3: Cross multiply
    9,888.81x = 14,834.43 × 3,648.85
  4. Step 4: Simplify right side
    9,888.81x = 54,128,609.91
  5. Step 5: Solve for x
    x = 54,128,609.91/9,888.81
  6. Step 6: Final answer
    x = 5,473.73

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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.