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Finding the Fourth Proportional to 9,080.61, 13,620.91 and 2,840.67

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Solution

The fourth proportional to 9,080.61, 13,620.91 and 2,840.67 is: 4,261.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.61 : 13,620.91 = 2,840.67 : x
  2. Step 2: Convert to fraction form
    9,080.61/13,620.91 = 2,840.67/x
  3. Step 3: Cross multiply
    9,080.61x = 13,620.91 × 2,840.67
  4. Step 4: Simplify right side
    9,080.61x = 38,692,508.63
  5. Step 5: Solve for x
    x = 38,692,508.63/9,080.61
  6. Step 6: Final answer
    x = 4,261.01

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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.