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Finding the Fourth Proportional to 8,984.73, 12,398.67 and 5,005.60

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Solution

The fourth proportional to 8,984.73, 12,398.67 and 5,005.60 is: 6,907.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.73 : 12,398.67 = 5,005.60 : x
  2. Step 2: Convert to fraction form
    8,984.73/12,398.67 = 5,005.60/x
  3. Step 3: Cross multiply
    8,984.73x = 12,398.67 × 5,005.60
  4. Step 4: Simplify right side
    8,984.73x = 62,062,782.55
  5. Step 5: Solve for x
    x = 62,062,782.55/8,984.73
  6. Step 6: Final answer
    x = 6,907.58

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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.