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Finding the Fourth Proportional to 5,881.41, 8,820.74 and 1,720.55

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Solution

The fourth proportional to 5,881.41, 8,820.74 and 1,720.55 is: 2,580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.41 : 8,820.74 = 1,720.55 : x
  2. Step 2: Convert to fraction form
    5,881.41/8,820.74 = 1,720.55/x
  3. Step 3: Cross multiply
    5,881.41x = 8,820.74 × 1,720.55
  4. Step 4: Simplify right side
    5,881.41x = 15,176,471.50
  5. Step 5: Solve for x
    x = 15,176,471.50/5,881.41
  6. Step 6: Final answer
    x = 2,580.41

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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.