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Finding the Fourth Proportional to 7,969.91, 10,998.74 and 4,385.01

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Solution

The fourth proportional to 7,969.91, 10,998.74 and 4,385.01 is: 6,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.91 : 10,998.74 = 4,385.01 : x
  2. Step 2: Convert to fraction form
    7,969.91/10,998.74 = 4,385.01/x
  3. Step 3: Cross multiply
    7,969.91x = 10,998.74 × 4,385.01
  4. Step 4: Simplify right side
    7,969.91x = 48,229,562.96
  5. Step 5: Solve for x
    x = 48,229,562.96/7,969.91
  6. Step 6: Final answer
    x = 6,051.46

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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.