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Finding the Fourth Proportional to 8,342.14, 12,515.21 and 2,795.51

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Solution

The fourth proportional to 8,342.14, 12,515.21 and 2,795.51 is: 4,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.14 : 12,515.21 = 2,795.51 : x
  2. Step 2: Convert to fraction form
    8,342.14/12,515.21 = 2,795.51/x
  3. Step 3: Cross multiply
    8,342.14x = 12,515.21 × 2,795.51
  4. Step 4: Simplify right side
    8,342.14x = 34,986,394.71
  5. Step 5: Solve for x
    x = 34,986,394.71/8,342.14
  6. Step 6: Final answer
    x = 4,193.94

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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.