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Finding the Fourth Proportional to 5,862.89, 8,090.88 and 3,210.55

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Solution

The fourth proportional to 5,862.89, 8,090.88 and 3,210.55 is: 4,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,862.89 : 8,090.88 = 3,210.55 : x
  2. Step 2: Convert to fraction form
    5,862.89/8,090.88 = 3,210.55/x
  3. Step 3: Cross multiply
    5,862.89x = 8,090.88 × 3,210.55
  4. Step 4: Simplify right side
    5,862.89x = 25,976,134.33
  5. Step 5: Solve for x
    x = 25,976,134.33/5,862.89
  6. Step 6: Final answer
    x = 4,430.60

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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.