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Finding the Fourth Proportional to 5,805.45, 8,011.53 and 3,152.88

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Solution

The fourth proportional to 5,805.45, 8,011.53 and 3,152.88 is: 4,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.45 : 8,011.53 = 3,152.88 : x
  2. Step 2: Convert to fraction form
    5,805.45/8,011.53 = 3,152.88/x
  3. Step 3: Cross multiply
    5,805.45x = 8,011.53 × 3,152.88
  4. Step 4: Simplify right side
    5,805.45x = 25,259,392.71
  5. Step 5: Solve for x
    x = 25,259,392.71/5,805.45
  6. Step 6: Final answer
    x = 4,350.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.