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Finding the Fourth Proportional to 7,649.70, 11,473.07 and 2,101.63

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Solution

The fourth proportional to 7,649.70, 11,473.07 and 2,101.63 is: 3,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.70 : 11,473.07 = 2,101.63 : x
  2. Step 2: Convert to fraction form
    7,649.70/11,473.07 = 2,101.63/x
  3. Step 3: Cross multiply
    7,649.70x = 11,473.07 × 2,101.63
  4. Step 4: Simplify right side
    7,649.70x = 24,112,148.10
  5. Step 5: Solve for x
    x = 24,112,148.10/7,649.70
  6. Step 6: Final answer
    x = 3,152.04

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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.