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Finding the Fourth Proportional to 9,101.76, 12,560.94 and 6,071.65

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Solution

The fourth proportional to 9,101.76, 12,560.94 and 6,071.65 is: 8,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.76 : 12,560.94 = 6,071.65 : x
  2. Step 2: Convert to fraction form
    9,101.76/12,560.94 = 6,071.65/x
  3. Step 3: Cross multiply
    9,101.76x = 12,560.94 × 6,071.65
  4. Step 4: Simplify right side
    9,101.76x = 76,265,631.35
  5. Step 5: Solve for x
    x = 76,265,631.35/9,101.76
  6. Step 6: Final answer
    x = 8,379.22

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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.