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Finding the Fourth Proportional to 7,969.99, 10,998.15 and 4,384.88

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Solution

The fourth proportional to 7,969.99, 10,998.15 and 4,384.88 is: 6,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.99 : 10,998.15 = 4,384.88 : x
  2. Step 2: Convert to fraction form
    7,969.99/10,998.15 = 4,384.88/x
  3. Step 3: Cross multiply
    7,969.99x = 10,998.15 × 4,384.88
  4. Step 4: Simplify right side
    7,969.99x = 48,225,567.97
  5. Step 5: Solve for x
    x = 48,225,567.97/7,969.99
  6. Step 6: Final answer
    x = 6,050.89

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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.