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Finding the Fourth Proportional to 7,003.68, 10,509.16 and 6,600.30

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Solution

The fourth proportional to 7,003.68, 10,509.16 and 6,600.30 is: 9,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.68 : 10,509.16 = 6,600.30 : x
  2. Step 2: Convert to fraction form
    7,003.68/10,509.16 = 6,600.30/x
  3. Step 3: Cross multiply
    7,003.68x = 10,509.16 × 6,600.30
  4. Step 4: Simplify right side
    7,003.68x = 69,363,608.75
  5. Step 5: Solve for x
    x = 69,363,608.75/7,003.68
  6. Step 6: Final answer
    x = 9,903.88

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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.