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Finding the Fourth Proportional to 8,374.88, 11,557.74 and 4,648.88

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Solution

The fourth proportional to 8,374.88, 11,557.74 and 4,648.88 is: 6,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.88 : 11,557.74 = 4,648.88 : x
  2. Step 2: Convert to fraction form
    8,374.88/11,557.74 = 4,648.88/x
  3. Step 3: Cross multiply
    8,374.88x = 11,557.74 × 4,648.88
  4. Step 4: Simplify right side
    8,374.88x = 53,730,546.33
  5. Step 5: Solve for x
    x = 53,730,546.33/8,374.88
  6. Step 6: Final answer
    x = 6,415.68

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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.