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Finding the Fourth Proportional to 7,974.12, 11,004.12 and 4,437.12

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Solution

The fourth proportional to 7,974.12, 11,004.12 and 4,437.12 is: 6,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.12 : 11,004.12 = 4,437.12 : x
  2. Step 2: Convert to fraction form
    7,974.12/11,004.12 = 4,437.12/x
  3. Step 3: Cross multiply
    7,974.12x = 11,004.12 × 4,437.12
  4. Step 4: Simplify right side
    7,974.12x = 48,826,600.93
  5. Step 5: Solve for x
    x = 48,826,600.93/7,974.12
  6. Step 6: Final answer
    x = 6,123.13

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Double scale
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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.