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Finding the Fourth Proportional to 8,374.98, 12,562.91 and 5,920.75

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Solution

The fourth proportional to 8,374.98, 12,562.91 and 5,920.75 is: 8,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.98 : 12,562.91 = 5,920.75 : x
  2. Step 2: Convert to fraction form
    8,374.98/12,562.91 = 5,920.75/x
  3. Step 3: Cross multiply
    8,374.98x = 12,562.91 × 5,920.75
  4. Step 4: Simplify right side
    8,374.98x = 74,381,849.38
  5. Step 5: Solve for x
    x = 74,381,849.38/8,374.98
  6. Step 6: Final answer
    x = 8,881.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.