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Finding the Fourth Proportional to 9,134.22, 13,621.13 and 9,051.06

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Solution

The fourth proportional to 9,134.22, 13,621.13 and 9,051.06 is: 13,497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.22 : 13,621.13 = 9,051.06 : x
  2. Step 2: Convert to fraction form
    9,134.22/13,621.13 = 9,051.06/x
  3. Step 3: Cross multiply
    9,134.22x = 13,621.13 × 9,051.06
  4. Step 4: Simplify right side
    9,134.22x = 123,285,619.64
  5. Step 5: Solve for x
    x = 123,285,619.64/9,134.22
  6. Step 6: Final answer
    x = 13,497.12

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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.