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Finding the Fourth Proportional to 14,273.88, 19,697.95 and 7,986.25

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Solution

The fourth proportional to 14,273.88, 19,697.95 and 7,986.25 is: 11,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.88 : 19,697.95 = 7,986.25 : x
  2. Step 2: Convert to fraction form
    14,273.88/19,697.95 = 7,986.25/x
  3. Step 3: Cross multiply
    14,273.88x = 19,697.95 × 7,986.25
  4. Step 4: Simplify right side
    14,273.88x = 157,312,753.19
  5. Step 5: Solve for x
    x = 157,312,753.19/14,273.88
  6. Step 6: Final answer
    x = 11,021.02

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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.