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Finding the Fourth Proportional to 7,998.34, 11,979.95 and 6,595.87

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Solution

The fourth proportional to 7,998.34, 11,979.95 and 6,595.87 is: 9,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.34 : 11,979.95 = 6,595.87 : x
  2. Step 2: Convert to fraction form
    7,998.34/11,979.95 = 6,595.87/x
  3. Step 3: Cross multiply
    7,998.34x = 11,979.95 × 6,595.87
  4. Step 4: Simplify right side
    7,998.34x = 79,018,149.40
  5. Step 5: Solve for x
    x = 79,018,149.40/7,998.34
  6. Step 6: Final answer
    x = 9,879.32

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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.