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Finding the Fourth Proportional to 6,699.60, 10,047.60 and 2,803.20

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Solution

The fourth proportional to 6,699.60, 10,047.60 and 2,803.20 is: 4,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.60 : 10,047.60 = 2,803.20 : x
  2. Step 2: Convert to fraction form
    6,699.60/10,047.60 = 2,803.20/x
  3. Step 3: Cross multiply
    6,699.60x = 10,047.60 × 2,803.20
  4. Step 4: Simplify right side
    6,699.60x = 28,165,432.32
  5. Step 5: Solve for x
    x = 28,165,432.32/6,699.60
  6. Step 6: Final answer
    x = 4,204.05

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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.