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Finding the Fourth Proportional to 12,374.21, 17,076.43 and 7,069.01

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Solution

The fourth proportional to 12,374.21, 17,076.43 and 7,069.01 is: 9,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.21 : 17,076.43 = 7,069.01 : x
  2. Step 2: Convert to fraction form
    12,374.21/17,076.43 = 7,069.01/x
  3. Step 3: Cross multiply
    12,374.21x = 17,076.43 × 7,069.01
  4. Step 4: Simplify right side
    12,374.21x = 120,713,454.43
  5. Step 5: Solve for x
    x = 120,713,454.43/12,374.21
  6. Step 6: Final answer
    x = 9,755.25

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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.