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Finding the Fourth Proportional to 6,842.81, 10,264.88 and 3,146.07

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Solution

The fourth proportional to 6,842.81, 10,264.88 and 3,146.07 is: 4,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,842.81 : 10,264.88 = 3,146.07 : x
  2. Step 2: Convert to fraction form
    6,842.81/10,264.88 = 3,146.07/x
  3. Step 3: Cross multiply
    6,842.81x = 10,264.88 × 3,146.07
  4. Step 4: Simplify right side
    6,842.81x = 32,294,059.68
  5. Step 5: Solve for x
    x = 32,294,059.68/6,842.81
  6. Step 6: Final answer
    x = 4,719.41

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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.