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Finding the Fourth Proportional to 9,059.40, 12,502.68 and 5,081.40

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Solution

The fourth proportional to 9,059.40, 12,502.68 and 5,081.40 is: 7,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,059.40 : 12,502.68 = 5,081.40 : x
  2. Step 2: Convert to fraction form
    9,059.40/12,502.68 = 5,081.40/x
  3. Step 3: Cross multiply
    9,059.40x = 12,502.68 × 5,081.40
  4. Step 4: Simplify right side
    9,059.40x = 63,531,118.15
  5. Step 5: Solve for x
    x = 63,531,118.15/9,059.40
  6. Step 6: Final answer
    x = 7,012.73

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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.