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Finding the Fourth Proportional to 5,812.80, 8,673.06 and 5,399.88

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Solution

The fourth proportional to 5,812.80, 8,673.06 and 5,399.88 is: 8,056.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.80 : 8,673.06 = 5,399.88 : x
  2. Step 2: Convert to fraction form
    5,812.80/8,673.06 = 5,399.88/x
  3. Step 3: Cross multiply
    5,812.80x = 8,673.06 × 5,399.88
  4. Step 4: Simplify right side
    5,812.80x = 46,833,483.23
  5. Step 5: Solve for x
    x = 46,833,483.23/5,812.80
  6. Step 6: Final answer
    x = 8,056.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.