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Finding the Fourth Proportional to 8,983.04, 12,396.59 and 5,208.39

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Solution

The fourth proportional to 8,983.04, 12,396.59 and 5,208.39 is: 7,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.04 : 12,396.59 = 5,208.39 : x
  2. Step 2: Convert to fraction form
    8,983.04/12,396.59 = 5,208.39/x
  3. Step 3: Cross multiply
    8,983.04x = 12,396.59 × 5,208.39
  4. Step 4: Simplify right side
    8,983.04x = 64,566,275.39
  5. Step 5: Solve for x
    x = 64,566,275.39/8,983.04
  6. Step 6: Final answer
    x = 7,187.58

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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.