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Finding the Fourth Proportional to 8,984.99, 12,399.30 and 5,006.25

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Solution

The fourth proportional to 8,984.99, 12,399.30 and 5,006.25 is: 6,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.99 : 12,399.30 = 5,006.25 : x
  2. Step 2: Convert to fraction form
    8,984.99/12,399.30 = 5,006.25/x
  3. Step 3: Cross multiply
    8,984.99x = 12,399.30 × 5,006.25
  4. Step 4: Simplify right side
    8,984.99x = 62,073,995.63
  5. Step 5: Solve for x
    x = 62,073,995.63/8,984.99
  6. Step 6: Final answer
    x = 6,908.64

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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.