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Finding the Fourth Proportional to 2,867.96, 4,303.20 and 2,756.18

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Solution

The fourth proportional to 2,867.96, 4,303.20 and 2,756.18 is: 4,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.96 : 4,303.20 = 2,756.18 : x
  2. Step 2: Convert to fraction form
    2,867.96/4,303.20 = 2,756.18/x
  3. Step 3: Cross multiply
    2,867.96x = 4,303.20 × 2,756.18
  4. Step 4: Simplify right side
    2,867.96x = 11,860,393.78
  5. Step 5: Solve for x
    x = 11,860,393.78/2,867.96
  6. Step 6: Final answer
    x = 4,135.48

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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.