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Finding the Fourth Proportional to 9,308.68, 12,846.02 and 5,117.20

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Solution

The fourth proportional to 9,308.68, 12,846.02 and 5,117.20 is: 7,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,308.68 : 12,846.02 = 5,117.20 : x
  2. Step 2: Convert to fraction form
    9,308.68/12,846.02 = 5,117.20/x
  3. Step 3: Cross multiply
    9,308.68x = 12,846.02 × 5,117.20
  4. Step 4: Simplify right side
    9,308.68x = 65,735,653.54
  5. Step 5: Solve for x
    x = 65,735,653.54/9,308.68
  6. Step 6: Final answer
    x = 7,061.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.