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Finding the Fourth Proportional to 9,252.70, 13,881.48 and 2,679.40

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Solution

The fourth proportional to 9,252.70, 13,881.48 and 2,679.40 is: 4,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,252.70 : 13,881.48 = 2,679.40 : x
  2. Step 2: Convert to fraction form
    9,252.70/13,881.48 = 2,679.40/x
  3. Step 3: Cross multiply
    9,252.70x = 13,881.48 × 2,679.40
  4. Step 4: Simplify right side
    9,252.70x = 37,194,037.51
  5. Step 5: Solve for x
    x = 37,194,037.51/9,252.70
  6. Step 6: Final answer
    x = 4,019.80

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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.