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Finding the Fourth Proportional to 7,708.70, 11,483.38 and 7,476.32

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Solution

The fourth proportional to 7,708.70, 11,483.38 and 7,476.32 is: 11,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.70 : 11,483.38 = 7,476.32 : x
  2. Step 2: Convert to fraction form
    7,708.70/11,483.38 = 7,476.32/x
  3. Step 3: Cross multiply
    7,708.70x = 11,483.38 × 7,476.32
  4. Step 4: Simplify right side
    7,708.70x = 85,853,423.56
  5. Step 5: Solve for x
    x = 85,853,423.56/7,708.70
  6. Step 6: Final answer
    x = 11,137.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.