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Finding the Fourth Proportional to 11,281.90, 15,568.82 and 6,246.11

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Solution

The fourth proportional to 11,281.90, 15,568.82 and 6,246.11 is: 8,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.90 : 15,568.82 = 6,246.11 : x
  2. Step 2: Convert to fraction form
    11,281.90/15,568.82 = 6,246.11/x
  3. Step 3: Cross multiply
    11,281.90x = 15,568.82 × 6,246.11
  4. Step 4: Simplify right side
    11,281.90x = 97,244,503.67
  5. Step 5: Solve for x
    x = 97,244,503.67/11,281.90
  6. Step 6: Final answer
    x = 8,619.51

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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.