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Finding the Fourth Proportional to 7,008.60, 10,509.66 and 2,076.96

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Solution

The fourth proportional to 7,008.60, 10,509.66 and 2,076.96 is: 3,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.60 : 10,509.66 = 2,076.96 : x
  2. Step 2: Convert to fraction form
    7,008.60/10,509.66 = 2,076.96/x
  3. Step 3: Cross multiply
    7,008.60x = 10,509.66 × 2,076.96
  4. Step 4: Simplify right side
    7,008.60x = 21,828,143.43
  5. Step 5: Solve for x
    x = 21,828,143.43/7,008.60
  6. Step 6: Final answer
    x = 3,114.48

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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.