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Finding the Fourth Proportional to 9,324.81, 13,987.10 and 2,751.05

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Solution

The fourth proportional to 9,324.81, 13,987.10 and 2,751.05 is: 4,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,324.81 : 13,987.10 = 2,751.05 : x
  2. Step 2: Convert to fraction form
    9,324.81/13,987.10 = 2,751.05/x
  3. Step 3: Cross multiply
    9,324.81x = 13,987.10 × 2,751.05
  4. Step 4: Simplify right side
    9,324.81x = 38,479,127.76
  5. Step 5: Solve for x
    x = 38,479,127.76/9,324.81
  6. Step 6: Final answer
    x = 4,126.53

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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.