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Finding the Fourth Proportional to 9,089.76, 13,634.76 and 3,246.72

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Solution

The fourth proportional to 9,089.76, 13,634.76 and 3,246.72 is: 4,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.76 : 13,634.76 = 3,246.72 : x
  2. Step 2: Convert to fraction form
    9,089.76/13,634.76 = 3,246.72/x
  3. Step 3: Cross multiply
    9,089.76x = 13,634.76 × 3,246.72
  4. Step 4: Simplify right side
    9,089.76x = 44,268,247.99
  5. Step 5: Solve for x
    x = 44,268,247.99/9,089.76
  6. Step 6: Final answer
    x = 4,870.12

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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.