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Finding the Fourth Proportional to 8,943.93, 13,415.88 and 3,100.54

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Solution

The fourth proportional to 8,943.93, 13,415.88 and 3,100.54 is: 4,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.93 : 13,415.88 = 3,100.54 : x
  2. Step 2: Convert to fraction form
    8,943.93/13,415.88 = 3,100.54/x
  3. Step 3: Cross multiply
    8,943.93x = 13,415.88 × 3,100.54
  4. Step 4: Simplify right side
    8,943.93x = 41,596,420.64
  5. Step 5: Solve for x
    x = 41,596,420.64/8,943.93
  6. Step 6: Final answer
    x = 4,650.80

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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.