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Finding the Fourth Proportional to 14,374.59, 19,835.86 and 8,085.75

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Solution

The fourth proportional to 14,374.59, 19,835.86 and 8,085.75 is: 11,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,374.59 : 19,835.86 = 8,085.75 : x
  2. Step 2: Convert to fraction form
    14,374.59/19,835.86 = 8,085.75/x
  3. Step 3: Cross multiply
    14,374.59x = 19,835.86 × 8,085.75
  4. Step 4: Simplify right side
    14,374.59x = 160,387,805.00
  5. Step 5: Solve for x
    x = 160,387,805.00/14,374.59
  6. Step 6: Final answer
    x = 11,157.73

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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.